History TooDumbToLive / Film

* ''Film/ExMachina'': Despite the fact that Nathan's TuringTest of Ava was explicitly to see whether she could convince Caleb to help her escape, he had absolutely no contingency in place to stop her when she actually DID manage to get out of her room.

** ''Film/JurassicWorld'' has Vic Hoskins when [[spoiler: he's confronted by the raptor Delta. Firstly, he knows that Delta ''really hates him'' and even sees him as food. Secondly, she's fallen under the ''I. rex's'' orders, not [[FluffyTamer Owen's]]. What does Hoskins do? Attempt to tame Delta despite ''repeated warnings'' by Owen that it's a bad idea. Hoskins then seals his fate further by accidentally making the "prepare to be fed" instead of the "I am your alpha" gesture. It's no surprise that he becomes raptor chow immediately after.]]

* ''Film/NightOfTheLivingDead'':
** Everybody in the original. Nobody in the film uses any sort of common sense, and it costs them their lives. In the original the character are to busy getting to each others throats than surviving against the zombies.
** In the remake we have everybody as the original for all the same reasons ''except'' Barbara. She points out early on that the zombies are so slow they could just walk past and the idea is promptly shot down. Towards the end of the movie she escapes by simply walking past them without even firing a single shot.

* ''Film/KingKong'': Capturing a giant ape who's smitten with a female human and bringing him back to civilization? [[TemptingFate What's the worst that could happen?]]

* The AnimalWrongsGroup at the beginning of ''Film/TwentyEightDaysLater''. After being explicitly told that a monkey is infected with a contagious disease, one of them frees it anyway.
** The US Army in ''Film/TwentyEightWeeksLater''. They allow unsupervised access to an asymptomatic infected, who consequently infects someone. Then they evacuate another one to Europe where the whole thing starts all over again.
*** The initial mistake wasn't allowing unsupervised access, it was giving a civilian access to 'ALL' areas of the military installation, even the top secret areas--including the place where the asymptomatic woman was.
*** Even so, they lacked the most basic security measures, such as placing guards around an individual who carries the most dangerous pathogen known to humankind. Nevermind how children were able to sneak past the perimeter and outside of the safe zone as if they were sneaking out of a high school during a lunch break...

* Makes the perfect couple with BondVillainStupidity in ''AHistoryOfViolence'', where all the mobsters, including their boss, dies horribly by the hand of the protagonist [[WhyDontYouJustShootHim due to their inability to just kill him off at the first occasion.]] The result is particularly hilarious when we learn, just before the last shooting, that in spite of all the talking and the stalking the villains performed earlier, their intentions was REALLY and JUST and PLAINLY to see the protagonist DEAD. Bonus points for the fact that they even know he was the ultimate {{Badass}} from the very start.

* Jesse from ''AliensVsPredatorRequiem''. Her companions already killed the Alien in the stairwell, but she runs away and screams, forcing her companions to chase after her through a more heavily Alien-populated section of the hospital. Then she dies when she gets into the path of the Predator's disc blades. The Predator wasn't even ''trying'' to kill her, she just runs straight into the middle of a fight between the Predator and Aliens and gets hit ''by accident''. WhatAnIdiot.

** Also none of the characters seem capable of realizing that the Predator is fighting the Aliens and that maybe it would be a good idea to just let it go about it's business and not bug it. The main character seems to at least partially notice this near the end, choosing to flee and leave the Predator alone rather then trying to fight it (an action that gets some other characters killed).
** Any human who tries to capture/breed/weaponize/domesticate the Xenomorphs falls under this. The (non-canon) ''Aliens'' comics explain this as an telepathic influence from the hive mind--they pull at the weak points of humanity and guide them into making breeding easier. It becomes closer to "Too Greedy To Live" in this light.
** Come to think of it, the Predators in many ''Franchise/AlienVsPredator'' media often fall into this trope. Despite the fact that Xenomorphs are apparently one of the species that Predators enjoy hunting the most, and thus should already know what they're capable of, Predators are frequently TooDumbToLive when they fight them. For instance, instead of attacking them at range, they frequently meet them in hand to hand combat, which is the Xenomorph's forte. Worse, they often tend to attack them not with blunt weapons or lasers, or even just their own fists, but with bladed weapons. [[IdiotBall That's right, they use bladed weapons in melee combat on a species that usually kills its prey at close range and bleeds acid when it gets cut.]] Even the so called "veteran warriors" do this. However, ExpandedUniverse gives a possible explanation for this; Predator blood neutralizes Xenomorph acid, so the acid isn't ''nearly'' as dangerous to them as it is to other species and the veteran Predators utilize specially crafted blades that ''don't'' melt on contact with the acid.
** It's also very important to note that Predator culture is heavily themed around stuff along the lines of "the honor of the kill". Using ranged weapons is considered a less honorable kill than going after a worthy opponent, using blades. One only has to look at the end of the original Predator movie to see this. The Predator removes all weapons bar its blades. Of course, it then ''looses'' so maybe they really are just too dumb to live.
* David and Jack in the beginning of ''Film/AnAmericanWerewolfInLondon'' exemplify this trope by, after being warned of danger, wandering off the road in the middle of the night, presumably without any food. Without the werewolf they still would have been lost for a long time.

* Dr. Atherton in ''Film/{{Arachnophobia}}''. He's the foremost spider expert in the country, and he's been extensively informed how dangerous the new breed of spiders are. He sees no problem however in investigating the huge spider's nest in the barn all by himself, with no protection whatsoever. Predictably, he dies within minutes.
** Granted, he didn't expect the General to be up there, and the General already had a grudge against him for killing its mate in the forest...
*** Never mind the fact that he expected whatever was up there to come crawling down the web as opposed to swinging up in his face.

** She wasn't there by choice -- Catwoman took her up there to have a "girl talk" and probably let her go like that in order to set up Penguin's frame. Batman definitely didn't help things by telling her "don't move" immediately before Penguin showed up with the umbrella full of bats.
* Quite a few characters in the film adaptation of ''Film/BattleRoyale''. Toshinori Oda probably takes the cake for surviving a burst of gunfire due to his bulletproof vest, then jumping up a few seconds later and loudly proclaiming "I'm alive!"

* In the English cop movie ''Film/{{Blitz}}'', there is a particularly simple individual by the name of Radnor who fancies himself as a police informant after realizing that a guy who boasts of shooting a police dog 'for practice' is now killing police officers. Lacking the evidence needed to convince the police, he starts his own investigation. His idea of inconspicuous clothing while observing the killer's residence amounts to a purple, green & white jump suit. When he discovers the car in which the killer is hiding weapons & trophies, he breaks into it and ''personally handles'' the murder weapon before putting it back. The police aren't interested in his evidence (not at the £50,000 asking price) so he goes to a member of the press who is not much smarter. When he shows the journalist the car, the killer observes them. They retire to a pub to 'talk business' and when the journalist produces the money in an envelope, Radnor insists it is not 50 grand, and goes into the toilets to count it. Guess who followed them to the pub? Radnor is in the toilets counting, when the killer breezes past him, perhaps to check the latter stalls for potential witnesses. Does he take this opportunity to run for the door or scream for help? No, he just becomes terrified and starts pleading with the killer that "I haven't told him your name yet". [[TheCanKickedHim He meets his end in a toilet bowel.]]
** Particularly glaring about this part is that they're in a public pub that has at least a dozen people in it at the time. Added to this is the simple fact that the killer is not some huge, muscular {{badass}}, and the door to the witness-filled pub is only a dozen steps away and definitely not soundproof. If Radnor had done ''anything'' besides be reduced to a whimpering simp by a man who weighs less than he does, he would have been able to alert everyone else and might have not only survived but caught the killer and been a hero.

* In ''BornOfEarth'', a character decides to stray away from the main group to take a piss...while being in the sewers being chased by monsters and one of their party having been gruesomely killed only barely a minute before.
* Multiple characters in ''BurnAfterReading'' more than qualify, but Chad Feldheimer goes above and beyond the call of duty, and definitely earns the title since he ends up getting shot in the head before the second act is even over.
* Every. character. in. ''Film/CabinFever''.

** Then there is [[FanNickname Party Cop]] whose every single action causes even more problems and the virus to spreed. The only problem? He [[KarmaHoudini makes it through 2 films without suffering any consequences]], or even aware he was causing so much damage.
* Let us take a moment to mourn for the intelligence of the driver in [[Film/TheCall The Call]] who made not one, not two, but three really stupid mistakes that ended in his death. #1, he followed someone who was acting suspiciously to a secluded area. #2, he pulled out his cell phone to call the cops right in front of him. #3, after he's put in the trunk, he inexplicably starts screaming and yelling for help, despite Casey begging him not to. That last one ends with him getting stabbed repeatedly in the chest with a screwdriver.
* Head goon Buddy in ''Film/{{Christine}}'', when chased by the possessed big V-8 powered car, opts to run down a long stretch of straight highway, rather than get off-road where a car might have some difficulty getting through at any speed.
* Ditz the ''Film/TheChristmasToy'' invokes this trope in its most literal sense, since his defining character trait is stupidity, he goes off and does literally the dumbest thing a toy in their world can do, with [[NeverSayDie "death"]] as his reward.
* Hud from ''Film/{{Cloverfield}}'' may qualify. Whether his friends are being attacked by parasitic creatures or a gigantic monster is hovering over him with a hungry look in its (many) eyes, it never occurs to him to just ''put the damn camera down and '''do''' something!'' Naturally, another character loses her life to save him from the parasites while his hands are full, and the hungry monster ends up eating him. On the Podcast/{{Rifftrax}}, Kevin Murphy describes Hud as "straddling a fine line between ''dumbass'' and ''inanimate object.''" There's a reason one of the [[FanNickname/{{Film}} Fan Nicknames]] for the monster is "Darwin".
* The Prison Guard in ''Film/ConAir.'' This Prison Guard and FBI Agent Larkin have just found a box labeled "[[ShmuckBait Do Not Open]]" in the cell of Cyrus Grissom, a criminal genius, terrorist, and murderer. Larkin goes to fetch the bomb squad, explicitly ordering the guard to not open the box. The second Larkin is out of the room, the guard sits right down on the bed and opens the box. [[StuffBlowingUp He is immediately blown to smithereens.]]
** The other guard with him warns him that Larkin said not to touch anything. That's three separate warnings the guy ignored. Truly TDTL!
* One segment of the horror anthology ''Film/{{Creepshow}}'' details the sad demise of numbskulled backswood hick [[Creator/StephenKing Jordy Verill]].
* ''Every single human being'' in the ''Series/MysteryScienceTheater3000'' film ''Film/TheCreepingTerror'' qualifies. The title monster eats people, but in order to do so it has to reach them by moving very slowly. However, because idiots simply sit there and scream rather than run away, they suffer the grisly death that their stupidity deserves. The fact that [[SpecialEffectFailure they have to crawl into its mouth to be eaten]] doesn't help.

** [[SubvertedTrope Subverted]] and played straight with those who do stay in the library and decide to burn books to keep warm, which are stacked on ''wooden shelves.'' One could argue that they simply could had burned the shelves themselves, but considering that wooden shelves would then have to be broken up to fit in most fireplaces and are usually painted/stained with substances that release toxic fumes when burned, burning books were the safer alternative by far. The dumb part was tearing the books apart and burning them page by page rather than using some loose pages as firestarters and then burn entire books-that would have been much more effective.

* The military, law enforcement, and the government in general in ''Film/TheDayTheEarthStoodStill2008'', though all of government in all of fiction is guilty of this trope, and it's not an unexpected reaction to aliens being suddenly real. Klaatu comes to Earth and reaches out his hand to the protagonists. Clearly, putting a bullet in him is the appropriate response. Only later do they realize he was able to shut down their defense network on a whim, and so they decide imprisoning and (implicitly) ''torturing'' him is a good idea. Klaatu's decision, after consulting a spy on Earth, is naturally that HumansAreTheRealMonsters and have to go, so the swarm of nanobots beings devouring every man-made object in its path. The military bombs it, only to see it grow larger. The Secretary of Defense at least grows a brain at this point, but the president orders even more bombing as if the opinion of his military adviser isn't worth considering.

* ''Film/DeepImpact''. Sarah's parents. They let their child refuse to go into the ark tunnel and then when Leo comes back for her, they don't try to follow on foot just because he has a motorbike.
* Raymond Cocteau in ''Film/DemolitionMan'' frees a dangerous psychopath in order to get rid of an enemy, but he has it implanted in his brain that he can't ever harm him. However, he also allows him to bring other criminals inside his home who don't have the don't-harm-Cocteau rule implanted. It doesn't end well for him.
* ''Film/{{Dracula Untold}}: After taking out the entire Turkish army to the last man, the vampire backup Vlad brings decides to threaten his human son right in front of him because [[KillEmAll "they (humans) are all our enemies now."]] For context, they decided to threaten the son of [[PapaWolf a guy that started a war, became an immortal vampire, slaughtered the entire Turkish army almost single handed, and then killed the leader in single combat largely just to protect his son, and who was currently generating the cloud barrier that kept them all from burning to death in the sun.]] [[SarcasmMode Yeah, that sounds like a good idea.]]

* ''{{Film/Equilibrium}}''. Is it ideal to continue to piss off one of your First Class Grammaton Clerics who you have just informed was an UnwittingPawn in your scheme to infiltrate the Resistance? Is there really a need to be surprised that one of your highly trained Clerics has wiped out your guards? Is there even a need to be surprised at his anger with the injustice and pain you have constantly caused him when he was already a very deadly target and of very volatile character in the first place? Cut the pathetic bullshit. He's going TranquilFury on ALL your asses.
* Katya in ''Film/EuropaReport'' staying out in deadly radiation long after advised to come back with some unknown danger below the ice.
* Eric in ''Film/EvilDead2013'' messes around with the [[TomeOfEldritchLore Naturom Demonto]] despite the fact he found it wrapped up in a garbage bag that was tied up in barbed wire, in a basement full of horrifically mummified cats. Not even the fact it is bound in GeniuneHumanHide, chock full of horrific illustrations and mad rants stop him from painstakingly creating etchings to get at the words that were scribbled out and reading them aloud. Completely ignoring the presence of warnings on ''the same damn page'' to '''leave the scribbled-out words the [[PrecisionFStrike fuck]] alone'''. This results in the brutal deaths of his friends and himself. Seriously, there's HollywoodAtheism and then there's this...

* Davis in the 2004 remake of ''[[Film/TheFlightOfThePhoenix2004 The Flight of the Phoenix]]''; the plane has just crashed in the middle of the desert and it's stormy outside. He goes out, in the middle of the night, to take a leak. Not only does he walk ''unnecessarily'' far away from the plane (It's the middle of the night! No one will see you, jeez), he somehow trips and falls down, then rolls ten meters away from where he was -- ''and gets '''lost'''''. He fails to find his way back to the plane, and dies out there.

** The worst part is that if the girl HAD finished off Pamela any of those other times, she probably would have lived a long life. The only reason she's killed in [[Film/FridayThe13thPart2 the next movie]] is because Jason witnessed her killing Pamela, which he probably wouldn't have if she had killed Pamela before she finally did. Not only that, but since we never get any evidence that Jason killed anyone before ''Part 2'', this might have even been what drove Jason over the edge.
** What about Marcie? She goes to the bathroom in her underwear, which is a separate cabin in itself. After hearing a strange sound, she puts it down to her imagination. Turns around, having trapped herself near the cubicles, there's an axe raised above her head. All she can do is scream.

* [[DrillSergeantNasty Hartman]] from ''Film/FullMetalJacket''. When Pyle is in the middle of a nervous breakdown and holding a rifle, he decides that, rather than call the [=MP=]s, he should insult the poor guy. It doesn't end well for him.
** On top of that, Private Joker had warned Hartman mere moments before that he suspected Pyle was Section 8.
* The archangel Gabriel from the movie ''Gabriel'' qualifies. From the very first person that he meets onward he is constantly warned that using his powers will attract the attention of every bad guy in the city, letting them know exactly where he is. So what does he do? Why, he seeks out his fallen comrades who are in hiding and proceeds to use large quantities of his powers to "help" them, even when they specifically and emphatically tell him not to and yell at him for it after the fact.
** To top it all off, Gabriel is actually shocked and suffers a HeroicBSOD when he learns that he DID, in fact, lead the bad guys to his comrades and they all died because of his stupidity. [[TheDragon Asmodeus]] even points out, "If you didn't want them dead, why did you lead us to them?"
* First mate Greer in ''Film/GhostShip'' knows he is on a ghost ship where some of his mates have already died. After downing his sorrows with a drink, he decides to shut off his brain and try to make out with the seductive female ghost. He falls straight through her intangible body into an elevator shaft.
* The fatal flaw of the Neo-Vipers from ''Film/GIJoeTheRiseOfCobra''. The loss of their self-preservation instincts might make them determined, but it also makes them much more likely to make fatal mistakes.

** Commented upon in the [[Series/MysteryScienceTheater3000 MST3K]] episode by Crow.
--->'''Crow:''' (laughing) Oh, now that just seemed ''completely'' avoidable.
* The group of film students from ''Grave Encounters 2'' makes the decision to break into an abandoned mental asylum in the middle of the night not in spite of the fact that it might be dangerous, but ''because'' they believe that it killed a group of people horribly. The results are somewhat predictable.
* At one point in a screening of ''Film/{{Halloween 1978}}'', Laurie Strode's stupidity is too much for one audience member. When she fails to make sure Mike Meyers was dead after he came back from apparent death the first time, the audience member shouts, "You stupid bitch, you deserve to die!"
** Also, she never thought to maybe ''pick up the knife'' that Meyers dropped after being killed the second time so that if he did get up she could defend herself.
** Her friends that do get killed are even ''worse''.
*** Michael's an [[NighInvulnerability indestructible]] [[HumanoidAbomination demon in human form.]] Laurie didn't know this when she stabbed him in the throat with a knitting needle, and later in the chest with his own knife. As for her friends, Michael's good at staying hidden. They never knew they were in danger in the first place.
*** Also, all three of them are small-town teenage girls who've never had to ''think'' about being in a fight for their lives, let alone train for it. Laurie does extremely well at thinking on her feet, protecting the kids, and fighting back when she has to instead of panicking.

*** On the one hand, he had been pretty docile for about seventeen years, not making a sound or causing anyone any trouble. On the other hand, he was in the hospital for committing multiple brutal murders, and killed one of the hospital staff for insulting him. Best not to provoke him.
* ''Film/{{Hancock}}'':
** All of the criminals, and arguably most of the citizens. The titular superhero Hancock is a JerkAss FlyingBrick who can and will use his powers to frighten, humiliate, or possibly mutilate anyone who remotely displeases him. He's also [[NighInvulnerability immune to harm]]. Despite these facts, everyone (save Ray, the main character and the only one with any common sense) either insults him, tries to provoke him, or [[ShootingSuperman shoots him]], even though it should be obvious he will cause them [[DisproportionateRetribution serious harm in return]].
** The (former) prisoners who assault Hancock at the hospital. Sure he can be hurt ''now'' because he's turning mortal. But he still has SuperStrength. And there is no way they could have known he'd be vulnerable.
*** The scene before showed a news report about him being hospitalized with gunshot wounds. Though they did start planning to escape and get revenge long before this happens though.
* Almost every character in ''Film/TheHappening''. You would think that an airborne toxin of unknown origins, before it was revealed to be plants, would be a sign for the people to stay at home, closing all doors and windows and never go outside at risk to be infected and suicide themselves. But no. All they do is '''BE OUTSIDE IN HIGH RISK AREAS AND BE SURPRISED WHEN PEOPLE ARE DYING!!!''' Plus the brilliant idea to "Run away from the wind".
** Mark Wahlberg's character (a High School Science teacher) telling a woman over the phone to stay indoors and not go near the large tree outside her window. He does this ''while standing in an open field.''
** The whole movie revolves around plants making people Too Dumb To Live. The toxin retards people's self-preservation instinct, which rather than making them heedless of danger, makes them all decide to commit suicide in the most gruesome way at hand.
* A nameless Triad thug in ''Film/HardBoiled'' shoots two SWAT officers in the climactic hospital battle, killing one of them. As he goes to finish off the other, Teresa Chang snatches up a pistol and holds it on him. Possibly believing that she was merely a trapped civilian (she was wearing plainclothes) and wouldn't have the nerve to shoot him, the thug slapped her and called her a "fucking bitch!" She promptly shot him about five times in the torso.
* Both [[Film/{{Hulk}} of]] ''Film/TheIncredibleHulk'' movies. Seriously, will General Ross ever get that shooting ? stopping Hulk, hurting Betty = Hulk turning into Banner? Bruce spends the entire movies trying to lay low and keep things under control. Then the military catches him, tries to perform experiments on him, he turns into the Hulk, and they make things WORSE by hitting him with heavy artillery, making him angrier than before.
** In the second film, Ross specifically tries to knock Bruce out with gas instead of making him angry, and orders his men ''not to engage''. If Bruce hadn't seen Betty there being kept away from him, it might've worked. Nice job breaking it, Betty!
** Emil Blonsky deserves special mention. He held his own in a battle with Hulk, mainly because of how quick he was, due to the super soldier serum he'd been given. After he and the rest of his military division have thrown everything they have at Hulk, and he is still walking, Ross tells Blonsky to fall back. Blonsky then rips off his earpiece, drops his gun and attempts to stare down the Hulk, saying "Is that all you've got?" Cue Hulk-powered thrust kick to the chest, followed by being smooshed all over a tree. Said smooshing breaks every bone in his body, which would have killed him if not for the super soldier serum.

* Frollo of Disney's ''[[Disney/{{The Hunchback of Notre Dame}} The Hunchback of Notre Dame]]''. While he is a cunning man, he acts on this trope near the end of the film when he climbs on top of the gargoyle to kill Esmerelda. Considering that he is standing up straight on the over-hanging gargoyle, with no support whatsoever, means his body weight causes the aging statue to crack.

** There is also the fact that after finally encountering another human being who can help protect her from being mercilessly pursued, Helen's first instinct is to [[LetsSplitUpGang leave Elsa by herself and run upstairs to phone for help.]] Elsa's fate hereafter is pretty obvious.
** Even before that, she distracted the police officer who was trying to protect her right as he approached the killer. This led to both the police officer getting killed ''and'' the killer becoming aware of her presence.
* Dr. Elsa Schneider from ''Film/IndianaJonesAndTheLastCrusade'' who, after being told by the immortal knight that the Holy Grail must never cross the great seal, grabs the Holy Grail and starts backing away with it while Indy keeps telling her to ''don't move'' and ''don't cross the seal''! Moments later, she finds herself hanging for dear life above a huge chasm that she caused. Instead of letting Indy save her, she reaches for the grail. Naturally, she suffers a DeathByMaterialism when her hand slips from Indy's hold.
** Donovan also qualifies. After being told that "while the true grail brings life, the false grail will take it from you", he pauses, not knowing which one to pick. When he lets Dr. Schneider choose for him, he simply assumes it must be the one. [[IdiotBall Should have asked for another volunteer.]]
*** This is more an example of DistractedByTheShiny, because Dr. Donovan was obviously overwhelmed by the moment, thinking he was holding the legendary Grail in his hands.
* In ''{{Ink}}'', during the kidnapping scene, it never occurs to Emma to try hiding under a bed or a couch until the nasty monster that's trying to take her gets run off. Similarly, it never occurs to any of the Storytellers to grab Emma and get her away from Ink, or to call in reinforcements before Ink even made it out of the house.
* Josh Dalton from ''Film/{{Insidious}}'' definitely qualifies. Not only does he spend most of the movie as the AgentScully, arguing with his GenreSavvy wife, when he finally does accept the weirdness and go into the Further to save his son, he breaks every rule he was told to follow, culminating in him stopping ''ten feet'' from his body to yell at a ghost that's been stalking him since childhood ''to possess him specifically''. The ghost possesses his body, resulting in the deaths of his family and every other character in the film. And Josh is likely stuck with a FateWorseThanDeath. NiceJobBreakingItHero.
* Even after the sadistic Japanese Colonel Sato watches [[IpMan Ip Man]] beat ten karateka nearly to death, he doesn't think that walking within close range of the Wing Chun master and threatening his wife and child with a gun is a bad idea.

** The shark himself, for eating an explosive.
** ''Film/JawsTheRevenge''. The widow Brody is convinced that Jaws is still alive and going after her, so where does she go? Nebraska? Oklahoma? Some other place that's far away from the ocean? Nope: ''THE BAHAMAS.''
** The first victim in ''Film/Jaws3D'', who breaks the number one rule of diving--''never'' dive alone--when he goes to repair a malfunctioning sea gate. Even if there wasn't a huge shark out there waiting for him, any number of things could have happened to him with no one to save him or call for help.

* Many, many, many characters in the ''Franchise/JurassicPark'' series. Especially in ''Film/JurassicParkIII'', when Amanda is shouting into a megaphone. Towards a forest. On an island she knows is filled with dinosaurs.
** That's not even half of it:
--->'''Amanda:''' ''(on the megaphone)'' ERRR-IIIC!\\
'''Dr. Grant:''' And tell your wife to stop making so much noise! We're food to these damn animals.\\
'''Paul:''' ''(yelling)'' AMANDA, HONEY! DR. GRANT SAYS IT'S A BAD IDEA!\\
'''Amanda:''' ''(on the megaphone)'' WHAT?\\
'''Paul:''' ''(pointing broadly at Alan)'' HE SAYS IT'S A BAD IDEA!\\
'''Amanda:''' ''(on the megaphone)'' WHAT'S A BAD IDEA?\\
''(a roar is suddenly heard)''

---> '''Burke''': No, no. You're wrong there, Dr. Harding. We'll lose them once we leave their territory.
---> '''Sarah''': No, don't bet on it. Tyrannosaurs have the largest proportional olfactory cavity of any creature in the fossil record with the exception of one.
*** So naturally, she continues to wear a vest ''covered'' in the blood of the aforementioned tyrannosaurs' infant. It's not like she forgot that it was there--Roland pointed the blood out to her and she explained that it was the t-rex infant's, and didn't think that there might be some danger in carrying it around.
* Balian's brother from ''Film/KingdomOfHeaven'' who really rather brings his death upon himself when he mocks his brothers grief, over Balian's dead wife, while wearing the pendant he stole from her body.
* ''Film/KingdomOfTheSpiders'' is about a town overrun by extremely venomous tarantulas. Apparently all the townspeople are wearing brand new shoes they don't want to mess up, because at no point does anyone just try ''stepping on them''. One character tries to shoot two dozen of them with a revolver and no extra ammunition in sight; when she sees a spider on her hand, she shoots it, and three fingers, right off.

* The 1985 film version of ''Film/KingSolomonsMines'' has a henchman who is given the following choice: either run for his life or climb out the window to retrieve the stick of dynamite Quartermain just threw out the window. You guessed it. He goes after the dynamite. To his credit, he does manage to retrieve the dynamite just before it explodes. His last words: "I've got it!"
* The Northern Water Tribe counts as this in ''Film/TheLastAirbender'', since the firebenders need torches to bend fire, Pakku suggests extinguishing all of them to render them powerless and... they never actually do that.
** Also the Fire Nation imprisoned some earth benders on...Earth. Luckily the Earth benders [[WhatAnIdiot never actually figure this out]] until Aang came along.
*** That one was ''almost'' justified; with the time constraints of the movie, they couldn't go through all the steps that brought the Gaang out to an oil platform, so the earthbenders had to be held on solid ground. It was implied that, somehow, the Fire Nation soldiers had completely broken their will to fight back before they were imprisoned. Good so far. If the RousingSpeech had been about fighting for your families and homeland and giving them the WILL to fight, that would have completely averted this trope; but instead, Aang all but says, "What are you idiots doing? You're standing on 16 trillion tons of the one weapon you have!"

* In ''Film/LethalWeapon2'', the bad guy who is responsible for killing Riggs's girlfriend and a bunch of their cop buddies is involved in a major shootout. He's a South African diplomat, so when they have him dead to rights, he pulls out his passport and intones, smugly, "Diplomatic immunity!" He gets shot in the head for his trouble by Roger Murtagh, who delivers the immortal line, "It's just been revoked."
** And to lay the icing on the TooDumbToLive cake, just before saying this line, the bad guy in question had just gunned Riggs down, which anyone watching a buddy cop picture knows is going to get you killed no matter which half of the [[ByTheBookCop law-abiding]] / [[CowboyCop loose-cannon]] partnership it's done to.
*** Diplomatic immunity does not protect you when you're openly committing crime and your guilt is obvious. If nothing else, your country will revoke it in a heartbeat because they don't want to be associated with your crimes.
*** Even moreso, diplomatic immunity means immunity from prosecution, not harm. He had just shot a police officer and was still brandishing the gun at another police officer, who would not have to worry about diplomatic immunity since he'd be excused for shooting the guy due to self-defense concerns.
* Bulk and Skull during the skydiving scene in ''Film/MightyMorphinPowerRangersTheMovie''. Kimberly has to remind them that it's a good idea to skydive with parachutes.
* Almost everyone in ''TheMist''. They all hold the IdiotBall so often that it's difficult to believe that they survived the first few minutes of the film. But the best example has to be when the survivors decide to take [[TheFundamentalist Mrs. Carmody's]] advice and use HumanSacrifice as a way to appease God and the creatures in the mist. As anyone who understands basic animal behavior will tell you, that kind of stuff will only draw ''more'' monsters to the immediate area around the store. Predators swarm at the smell of blood or the chance for an easy meal, so sacrificing people was actually the stupidest thing they could've done. On top of that the mist creatures seem to hunt by sense of smell or hearing because of low visibility, so attracting them to the store with an easy, injured meal would've also alerted them to the people hiding inside of it.
** They don't believe the mist creatures are animals, they believe that they are wrathful abominations sent by a furious God, despite testimony to the contrary. If they had accepted that Carmody was right, and that God needed to be appeased, then HumanSacrifice could well have been what was needed. The real TooDumbToLive moment was letting themselves be convinced by her anyway, especially as they somehow think that "secret military project trying to unlock alternate dimensions" was somehow less plausible as a source of the trouble than "vengeful act of an uncharacteristically unpleasant Abrahamic God," especially as the source for the first possibility was "soldier who worked on said project" and the source of the second possibility was "nutcase."

* The science fiction spoof ''Film/MomAndDadSaveTheWorld'' has a memorably absurd case of this on a massive scale, played for laughs: There's a weapon called the light grenade that disintegrates anyone it comes in contact with once the pin is pulled, but only if the victim is dumb enough to actually pick it up. It has the phrase "PICK ME UP" engraved on it. Because the movie takes place on a planet full of idiots, one of these left out in the open takes out a platoon of evil troops, each one picking it up immediately after seeing what just happened to the last guy who did that.
** When last seen, the next-to-last survivor of the platoon is just getting disintegrated, while the last survivor is radioing for more reinforcements to come pick up the grenade.
*** Still worse is the Light Grenade is commandeered technology, so the troops all know exactly what it is and what it does, and lampshade this with such lines as, "The Earth Man has a light grenade for a head" then when everyone asks what they pick it up, or "Everyone be careful, there is a light grenade on the ground." then responding to "Where" they pick it up and say, "Right Here" before poofing into a flash of light with a moment of sudden realization on their faces.
**** The irony of this is King Raff, the smartest of the people on the planet, who admits even he himself is an idiot, somehow invented almost all the technology on the planet, including the Light Grenade, a device that is infinitely reusable, and leaves seemingly no waste, just lots of piles of perfectly clean clothes, as well as a beam that can pull a car and safely transport it and its occupants through space from Earth to his planet.

** That isn't Tod's only TDTL moment. To penetrate the castle and save his wife, Richard Nelson aka Dad in the title, leads the idiot rebels (whose favorite weapons that their leader innovated are large smooth and round rocks which they hurl like shot puts) to build a giant hollow wooden statue of Todd and put it outside the castle. Todd is called to see it, and cheerfully rushes to look, then chides his soldiers on how it looks nothing like him, but instead of having them destroy it, he shouts to open the gates and bring it in to show everyone how much it looks nothing like him... though the rebels did nail the trapdoor securely shut.
* Each member of the Film/MysteryTeam, but especially Charlie and (later) Jason. Jordy also qualifies.
* Madison, the birthday girl in ''Film/MySuperPsychoSweet16''. While she and Skye, who happens to be the killer's daughter, are running from the killer, she picks that time to insult Skye again. You can guess what happens.
** Chloe sits around in the dark, abandoned bathroom planning to spray Skye with a fire extinguisher. Can you say "{{Genre Blind|ness}}"?
* Garf from ''[[Film/{{Neighbors2014}} Neighbors]]''. It takes a special kind of idiot to eat a pot brownie immediately before a disciplinary audience with the dean.

* Everybody in ''Film/NightOfTheLivingDead''. Nobody in the film uses any sort of common sense, and it costs them their lives. In the original the character are to busy getting to each others throats than surviving against the zombies.

* In ''Film/TheOmegaMan'': Richie subscribes to the popular "Children are Too Dumb to Live" concept. After Neville cures Richie of the plague, Richie asks if he will cure the Family (the bad guys). Neville declines on the reasonable basis that they are homicidal maniacs who worship the plague and prescribe the death penalty for those who are not afflicted by it. So Richie decides, on humanitarian grounds, to walk into the lair of the Family and tell them about how he was cured and they can be too. It is a relief to see Richie exit the gene pool. Too bad he brings down the hero as a result.
* ''Tom Yum Goong'' (''The Protector[=/=]OngBak''). Given that they've watched ''dozens'' of their comrades writhe in excruciating pain, most of the {{mooks}} in [[http://www.youtube.com/watch?v=gsJ5s6CKmog this scene]] qualify ('''Warning:''' [[RatedMForManly This scene may impregnate the viewer, regardless of sex]]). If only they weren't practicing MookChivalry.

** This could be explained by Esther's constant intimidation of the kids, since young children do tend to clam up and hide the truth from adults, even when telling it seems like the most logical course of action (such as in case with bullying).

* Ofelia of ''Film/PansLabyrinth'' surely qualifies in the infamous Pale Man scene. She has been warned by the Faun not to touch any of the food on display, or else; the magic book, just in case she forgot, tells her again... and guess what she does? She apparently doesn't notice the horrific looking creature sitting as still as a statue at the head of the table, never mind hear it springing to life as she takes a bite out of some fruit. The fairies with her even wave their arms and try to warn her not to, but she just greedily swats them out of the way and they end up getting eaten by the Pale Man for their troubles. To be fair, it's possible that the feast exerted a sort of hypnotizing effect on her. Pan's Labyrinth was influenced by various fairy tales, and such an effect is [[ArtifactOfAttraction not unheard of]].
** [[ItMakesSenseInContext She was about 8 years old, in the middle of a war and all the food shortages that go with it, also sent to bed without supper, suddenly seeing a banquet where everything looked and smelled amazing.]] The monster should have tipped her off, though.
** Ofelia likes fairy tales, and the movie is set up like one. In some fairy tales (but not all), the main character will fail to listen to advice, or do something they were told specifically not to do. In some cases the tale ends here, otherwise the main character must do something to redeem themselves in the eyes of their quest-giver. So Ofelia is just acting in accordance with the fairy-tale princess that she believes she is.

* In ''Film/PerfectStranger'', Miles Haley finds out that Rowena Price, the reporter who was investigating her friend's murder, actually killed her after years of blackmail by the victim. After confronting her, he decides to blackmail the woman who just killed the last person who tried to blackmail her! His sudden death is well deserved.
* ANYONE who buried anything in the burial ground in ''Literature/PetSematary'' after seeing the initial results (heck, after the initial ''warning'' for that matter). You'd think that after seeing what happened to Church the cat they would have stopped, but the guy then proceeded to bury his hit-by-a-truck toddler son Gage, who then came back and killed his wife. [[WhatAnIdiot If that wasn't enough yet,]] he then '''buried his wife there''', and she mercifully put an end to his chain of idiocy.
** This is easily explained by the book. The burial ground calls out to people, and at one point the main character mentions that he feels great when going off to bury Church. Besides, the main character is insane with grief after Gage dies and just loses it when his wife and Jud get killed as well.
*** Even without the burial grounds, people who have lost loved ones in sudden and traumatic fashion do strange things. If people in real life will give thousands of dollars for a 'psychic' to pretend to communicate with their loved ones, or sleep with their ashes next to them in a bedroom, its not too far fetched that if given the chance, someone would use anything to try and get them back.
** Then came the movie ''Film/PetSemataryTwo'' (yes, there was a second movie), which was more of the same, but with most roles reversed either gender-wise or species-wise, plus a much higher body count, reanimated or not and a MUCH higher "creepy" factor in that the plot dared to bring up the utterly stay-up-all-night-thinking-about-it scientific side of the undead people/animals, courtesy of Dr. Chase Matthews the veterinarian: first the kids Jeff and Drew buried Zowie the dog after he was shotgunned by Drew's abusive stepfather Gus, and upon Zowie's return didn't really feel like there was anything wrong when the dog acted nasty -- Zowie was probably just irritable from being away from home for a bit. More burials took place, including Gus himself and Jeff's actress mother Renee, who is taken from her grave much like Gage in the first book/movie. Interestingly, the undead Gus even does some of the burying, effectively enlisting Clyde the bully (who he killed while undead) as his henchman.

** [[Series/MysteryScienceTheater3000 "Brilliant new plan, sir!"]]
* Millburn in ''Film/{{Prometheus}}'', trying to pet an alien-snake.
** And several others. Ignoring scientific procedure was quite common among these supposed scientists...
*** Removing you helmets in an alien environment. Even if the air is breathable, you don't know if there's any pathogens in it.
*** Finding an alien's head and trying to re-animate it with electricity, causing it to blow up.
*** Not having any sort of decent quarantine procedures outside on one scene.

* Vincent Vega of ''Film/PulpFiction''. A veteran hitman who really should have showed a little more respect for his weapons, he ended up causing the {{Trope Namer|s}} for IJustShotMarvinInTheFace due to recklessly pointing his weapon in the wrong damned direction, and when he was sent to whack Butch Coolidge for turning around and winning the fight he was paid to throw, he left his MAC-10 submachine gun on the counter while he went to the bathroom, not taking heed to the fact that his intended target might come across it while he was doing his business, leading to Vincent getting blown away.
** Vega is more careless than dumb, in large part due to him being a sociopath, as after Marvin gets shot, he doesn't even seem to care one way or the other about it and in Butch's case it seemed so absurd that Butch would actually come back there that Marcellus leaves to get donuts.
*** The rather logical explanation that Vincent is a moron because he is high on heroin for a good portion of his waking life has been forwarded.
** See also the man who continues to obnoxiously say "What?", despite the ''armed hitman pointing a gun at him and furiously daring him to keep saying it''. People afraid for their lives sometimes do dumb things, but doing the one thing you've been warned not to do is suicidally dumb.

* [[BigBad Rene Belloq]] in ''Film/RaidersOfTheLostArk''. One would think that before "testing" something like the Ark of the Covenant, he would have actually done some ''research'' on it, and ''Literature/TheBible'' clearly says (Samuel 6:19, King James version), ''And he smote the men of Bethshemesh, because they had looked into the ark of the LORD, even he smote of the people fifty thousand and threescore and ten men: and the people lamented, because the LORD had smitten many of the people with a great slaughter.'' Indy apparently knew about this passage, and tells Marion to close her eyes and not open them under any condition, but Belloq foolishly looks in it, and well, what happens to him and the Nazis is ''not'' pretty.

* On a more minor example, during a High Speed chase through a densely packed forest in ''Film/ReturnOfTheJedi'', a Stormtrooper turns around just long enough to see if his target died, and promptly crashes into a tree. Look where you're driving! Or... avoid doing a high-speed chase through a densely packed forest to begin with? Considering that Luke demonstrated that the speeders can change elevation, racing through the trees at ground level in the first place qualifies everyone involved. On top of that, after Luke had been knocked off his speeder, his foe doubles back to finish him off rather than continuing on to get help, as all of the speeder troopers were commanded to do (and is the reason why they bolted from the scene in the first place).
** A reasonable argument could be that, once dismounted, Luke used Force influence to convince the trooper to swing around and try to kill him. If you watch closely, Luke pulls out his light saber before the trooper turns around.
** Also, the Imperial ground forces in general in ROTJ deserve this. Locating your sensitive base in the middle of a forest where there's plenty of places for the hostile natives to hide? Oh, and wearing bright, gleaming white armor to a fight in said forest? Apparently, the Empire never invented camouflage.
*** The Clone Troopers in the Clone Wars did have camouflage. It seems when the Empire were run by half brained commanders, and Dark Side drunk Sith, instead of sane Jedi.
*** While it is true that the Ewoks themselves, being 3-foot-high aborigines armed only with spears and rocks, were not an apparent threat to Imperial stormtroopers (even though they unaccountably turned into one in the end scene), since the Empire was specifically ''expecting'' the arrival of a Rebel sabotage team -- indeed, the Empire's entire plan involved deliberately leaking the location of the Death Star's construction site to the Rebels and inviting them to make a run at it -- it's really stupid to make life easier for said Rebel sabotage team by not clearing away the underbrush immediately around the base so they have to cross a stretch of open ground (and thus be plainly visible) to reach your back door. Extra special dumb points are awarded because "clear out a strip of land around your fort so somebody doesn't try and sneak at the walls" was already common military practice back when they were first inventing forts and walls.

* Robin's father in [[Film/RobinHoodPrinceOfThieves the Prince of Thieves movie]]. One of his servants runs to him saying that someone had taken the servant's daughter. And he promptly puts on armor, gets on a horse and rides out the front gate. Alone. In the middle of the night. And apparently without bothering to look out first because he's ''shocked'' to see a group of [[MalevolentMaskedMen men in cloaks]] holding torches in plain view. And then he rides out to fight them instead of getting back inside, pulling the gate up and waiting for Nottingham and his dozen or so men to just give up.

* Many of the traps in ''Film/{{Saw}} II'' required the participants to be terminally stupid in order to kill them. Most of them are therefore effective.
** For a more detailed rundown, there's Addison immediately sticking a hand into the obvious bladed trap, and then, instead of keeping her other hand out to free the first one, shoves it in too when the syringe she's going for spills (and [[WordOfGod commentary]] reveals that the box had a key already in the back, so if she'd taken a few seconds to assess the situation she would have gotten the syringe with no trouble).

* {{Lampshade|Hanging}}d in ''Film/{{Scream 1996}}'' with Sidney Prescott's assessment of a lot of slasher movies:

** This is based on a very ''early'' scene from the book (''Literature/TheDarkIsRising''), where he, Merriman, and the Lady are holding a three-person circle of power in the Hall while the Dark tries to beat down the door, and they break his concentration by convincing him briefly that they've got his family captive. He lets go of his new comrades' hands, and the Lady has to temporarily die to save the day. Then Merriman actually explains a little bit, although he has an infuriating habit of explaining nothing, ever. (Will's also only just eleven in the book.)

* Invoked in the slasher spoof ''Film/ShriekIfYouKnowWhatIDidLastFridayTheThirteenth''. Everyone agrees that with the recent killings they should hide out at a safe place – but they all think it should be in the middle of nowhere, preferably the dark woods in the pouring rain, and without any adult supervision or police protection in the near vicinity. One even suggests that they should go to a deserted place that's been abandoned ever since a bunch of dorky kids were dismembered there.
* The aliens from ''Film/{{Signs}}'' walk around Earth naked, despite being as much vulnerable to water as we are to sulfuric acid. Really, just coming to a planet that's roughly ''three-fourths water'' probably counts.
* The main characters of ''Film/SistersOfDeath''. They respond to anonymous invites to an isolated location (one of whom hitchhikes to get there, despite the fact that they were all sent enough money to afford transport), allow two strange men to drive them to their destination (in an SUV with all the windows covered), and when their host reveals that he wants to kill one of them (the one who arranged his daughter's death seven years earlier), they continually separate and isolate themselves. And continue to do so even after [[TenLittleMurderVictims they start getting picked off.]]

** Interestingly, nobody ever produced a rational reason for the need to flee the scene, as there were a) the aliens are after humans, so LA provides enough targets for some time. Maybe they won't search the ocean for tiny boats with few people in them at all and b) where the aliens are, there will be the comabt zone. The Houskeeper even insist on staying in the "safety" of the appartement, after a nuclear bomb went off right outside the window.
** Talking about that, keeping on with peeping through a telescope when what you see is a stealth bomber delivering a really big payload is not very sensible either.
* Eddie Kim, BigBad of ''Film/SnakesOnAPlane''. Unleashing the titular snakes on the titular plane earns him the death penalty for multiple counts of murder and attempted murder. And it was all [[HeKnowsTooMuch to silence a witness]] who survives anyway.
* In ''Southern Comfort'', the main characters are in the National Guard on a training mission in a swamp, miles from civilization. They see one of the inhabitants from a distance and decide to mess with him... by pointing their rifle (loaded with blanks) at him and "opening fire." Shockingly, the locals have their own rifles, not loaded with blanks. Natural selection ensues.
** Actually, the shooting is done by just one guy, Stuckey, consistently portrayed as the biggest idiot of the bunch (he plays the same "joke" on his sergeant near the beginning of the movie). But they all get to suffer for it.
* Gwen Stacy and her colleagues in ''Film/SpiderMan3''. They see a huge piece of rebar clearly heading towards the window of their office, and they see it from afar, and there's more than enough time to run away. The photographer reacts to it by asking "What is that thing doing in the background?", and Gwen reacts by ''walking towards the window'', as if she's not sure it's a huge piece of rebar heading her way and wants to take a closer look. Alas, Peter intervenes, and Natural Selection is once again thwarted.
* The news correspondent and the cameraman on Klendathu from ''Film/StarshipTroopers''. They're on the surface while the actual battle is still raging. What makes them this trope is that they actually stop during a mass retreat to get some shots of the action, and are both promptly killed for their trouble.

* From the reboot film series of ''Film/StarTrek'':
** The whole race of Romulans in the latest installment of ''Film/StarTrek''. Their whole sun goes supernova thus destroying Romulus in the process? Sorry, but you must be plain dumb in order to let ''that'' happen (according to Star Trek Online, they caused it by testing weapons that were banned due to this specific reason). Not only do they possess a whole '''star empire''', which means they have more planets then just the one being threatened by the super nova, they should also have the technological possibilities to detect super novas '''in time'''. It's not like they happen as a total surprise. It shouldn't have been a problem at all to evacuate a planet in time. And to let Spock as the ''only person'' in the goddamned empire try to prevent it because they were too busy arguing. That's beyond dumb. Maybe more so, since the ship and technology Spock uses were built on Vulcan, which means ''somebody'' had sufficient advance notice and time to prepare a response.

** In its sequel, ''Film/StarTrekIntoDarkness'', the top Starfleet brass hold an emergency meeting on top of a tower with ''large open windows''. It's not surprising when Harrison (aka Khan) attacks them with a gunship. Especially because as Kirk noted only seconds before that happened, Harrison was a high ranking member of Starfleet himself and would thus know the protocol for the situation he created and where and when the top brass would meet.
** Also [[GeneralRipper Admiral Marcus,]] as noted by Khan himself, thought he best way to combat the Klingons was to wake up a genocidal, sociopathic super-human and ''then'' threaten [[AFatherToHisMen his family]] so the guy will build weapons for Marcus. [[SarcasmMode Great plan!]]
* In ''Franchise/StarWars'': ''Film/ANewHope'', you'd think Admiral Motti would have known that dissing the faith of the big scary Sith Lord and personal hatchetman of the Emperor, Darth Vader, in his face is a ''very'', ''very'', '''''very''''' bad idea.
** Keeping in mind [[EarlyInstallmentWeirdness when the scene was written]] -- the Force had less presence in the material plane in the original script, thus people like Han Solo who didn't believe in the Force were the rule rather than the exception -- Motti gets upgraded from TooDumbToLive to Too Dumb To Keep His Job. Motti probably had never worked with Vader before and probably thought Vader’s reputation was just to scare rebels. He had no idea Vader was going to choke him with magical powers! However, it was still a pretty bad career move to insult ''the Emperor’s personal aide''; he was a bold, outspoken guy whose candor had been appreciated, or at least tolerated, in previous positions which did not involve working with AxCrazy Sith Lords...
** Then there's Greedo, a bounty hunter so amateurishly stupid that he doesn't get the most basic line you need to say when you are covering your quarry, "Keep your hands where I can see them."
*** In the Expanded Universe short story collection ''Literature/TalesFromTheMosEisleyCantina'', it's revealed Greedo was not at all an experienced Bounty Hunter. He was a wannabe Hunter who was the target of a contract himself, as the last of a group of refugees/exiles from his home planet. His assassins tipped him off to the bounty and led him to Solo, knowing that Solo would easily dispatch him on their behalf.
** In ''Film/AttackOfTheClones'' we get to see Zam Wessel, the changeling assassin. She was trying to flee the Jedi at every opportunity, clearly had the ability to change shape and had just ducked into a crowded bar. Once the Jedi entered you'd expect her to change shape again and run at the first opportunity right? Instead she deliberately ''attacked'' them and was somehow surprised when they easily disarmed her (literally).

* Very much Frank of ''State of Grace''. A mafia boss who goes to extreme lengths to kill his own friends and relatives just to satisfy the requests of another gang, against which he fears to lose in case of a mob war. It's really no surprise that he ends up being topped by Terry, his last remaining childhood friend, with even more added irony cause Terry was actually an [[ReverseMole undercover cop]] and was having qualms about busting Frank and the others.
* ''Film/TheStepfather'' remake has the main character's mother debunking all possible theories that her fiancé is a serial killer, from an old lady seeing his face on ''Series/AmericasMostWanted'' to her ex-husband saying that their youngest son told them that said fiance throttled him to her sister telling her that the fiancé quit her company shortly after he was required to fill out certain information that might get him caught.

** It was quite often stated that the cell phones had been disabled, very few people deserve to die for forgetting their phone in the car, but if anyone does, it's these two. But their friend probably should have made more of an effort to announce himself.
*** They were thrown into the fire because they were charging... and they didn't use them to call before they got burned for exactly that reason. The film makes it clear that their phones' batteries were not dead. Trying a call, anyone? No? Ok... Have A Nice Death.

* In ''Film/{{Taken}}'', Kim and Amanda are this. They are 2 American teenagers who go to France by themselves to follow around a band. They take a taxi with a stranger and then ''tell the stranger their apartment number'' and that they will be alone in the apartment. No surprise, within the first 30 minutes of the movie they are kidnapped. The criminals that take them could be considered this as well. They run on the premise that trafficking some young, pretty white girls from wealthy countries is the way to go, not realizing that even if Kim's dad Bryan wasn't a former spy who could kick their asses, the families of those girls would ask questions (and MissingWhiteWomanSyndrome).
** The behaviour of Kim and Amanda is not that far fetched, as anyone who has been around privileged teenaged girls who have spent their sheltered life in a gated community in suburbia can tell you.
** And, as evident by MissingWhiteWomanSyndrome even existing, this is not too farfetched on behalf of the criminals. Not every single person ends up in the news (and many who ended up in the news never led to a conviction). Combine that with the heavy implication that the French Police were being paid to look the other way and the high price they got for the daughter (probably not so much the friend), and it isn't that stupid.
** In the sequel, Bryan tries to offer Murad a LastSecondChance to walk away in exchange for leaving his family in peace. Murad blows it by going for Bryan's discarded gun... which was empty. Bryan promptly kills him.
*** Arguably Murad and his entire gang for their revenge plot against Bryan for killing their relatives (who were the antagonists from the first film). Their target is a RetiredBadass who, in his singlehandedly tracked down and slaughtered anyone linked to the kidnapping/whereabouts of his daughter and did so by ''infiltrating a human trafficking ring'' and ''evading the French police'' who tried to arrest him for his vigilante methods. What was their plan? To kidnap his wife ''and'' his daughter as a means to get him to surrender to him. Even though they succeed by capturing his wife, which forces Bryan to surrender to them, the fact that they were more or less ''pulling the same stunt'' their relatives did (kidnapping/endangering members of his family) which was what put them in the line of Bryan's warpath in the first place, you can't help but feel that their plan was ''outright suicidal''.
*** It's even worse considering that Bryan was also with both his wife ''and'' his daughter ''in the same country'', so Bryan had an ''easier'' time finding where his wife was held hostage compared to the first film, in which Bryan had to start from scratch in another continent finding his daughter. Not to mention that Bryan, being an ex-spy and all, would had likely taught his daughter self-defense in order to prevent her from being kidnapped again (and as luck would have it, he is able to keep her on her toes in the sequel-despite being captured by Murad's gang, he is able to give instructions to Kim which allows her to evade capture from their men and ultimately locate and rescue him).
* Kalle from ''Film/TheTrollHunter'', who concealed the fact he was a Christian from the crew and the hunter despite the hunter warning them that Trolls will go after anyone with Christian blood. It would have been justified since he didn't initially believe it to be a life or death decision when mythological creatures were involved, EXCEPT for the fact that both he and the crew had two violent encounters with trolls before finding themselves trapped in a cave filled with Mountain King Trolls that led to him getting killed.
* The central character Annie in the 2010 film ''Trust''. At the age of 14, she starts chatting online with someone called Charlie whose admitted age over the course of the chats goes up from 16 to 20, then to 25, and when she meets him in person at a mall we see he has to be in his late thirties at least. And what does she do? Instead of walking away, she gets into a car with him. And then goes to a motel room with him. And models in red underwear for him, before he rapes her. Admittedly she is 14, but in this day and age if a 14 year old girl does not even think to let a friend or family member know she is going to meet up with a stranger on the internet, and then ignores the cardinal rule of not getting into a car with a stranger (which hopefully most six year olds know by now) then she is clearly headed for a nasty shock.
* In ''Film/UrbanLegendsBloodyMary'', the teens are all victims of their own stupidity. In the first two films, the victims were at least tricked or trapped by a killer that they didn't even know was running around butchering people but in the third film, all the kids were so dumb that they would have died with or without Bloody Mary's help.
* Goddamn near ''everybody'' in the movie ''Warning Sign''. Firstly we have the Biotek employees who unzip their hazmat suits inside a sealed quarantine room - where they're making a deadly HatePlague - to pose for a photo. Then when the virus is released into the facility, the other Biotek employees apparently have no idea what a quarantine lockdown is, staring at the closing shutters and alarms in confusion and then get upset when they are ''locked in''. They then try to argue with Joanie, the security guard who started the quarantine, to let them go because she was ''scaring'' people with the quarantine despite some of them ''knowing'' they were working on a hate plague. ''Then'' the concerned townspeople and relatives outside the quarantined building try to break their way in, despite being told the spin story that a chemical that would destroy their crops had been released inside. If not for Joanie having more common sense than everyone in the county and sticking to the quarantine protocols, Utah would have been ''screwed''.
* In ''Film/{{Waterworld}}'', there is a character named Enola who doesn't know how to swim, when 99% of the planet is covered in water. It's made very clear that she ''can'' be taught to swim and that no one ever thought that a child growing up on a planet covered by water should know how to swim.
** Though it is not lampshaded, it could be that she was sheltered inside all of her life so that no one would notice her birthmark/tattoo. Wearing a bathing suit or skinny dipping, someone would eventually notice it.
** Then there is the fact that the people want to kill the main character for being a mutant. His mutant ability? He can breath in water. Let's see, a planet 99% covered in water and you want to kill the one guy who can be a vital aspect to your community?
* Beth, the main character in 2011's ''The Wicker Tree'', the "spiritual sequel" to 1973's ''Film/TheWickerMan'', goes crashing hard into this trope in the last 20 minutes of the film. She and her boyfriend Steve have agreed to serve as the Queen of the May and Laddie, respectively, for the May Day celebrations in the Scottish village they have been recruited to to preach Christianity. On May Day, Steve is eaten alive by a mob of villagers, while Beth is left unconscious in a room of previous Queens of the May in the village's butcher shop. All of them have been killed and embalmed, and permanently displayed sitting on wicker thrones. Upon awakening, Beth discovers this, and manages to escape through a window. She runs across the one rogue villager who's tried to help her and Steve, Lolly, who tells Beth that Steve has been killed, and she needs to escape before the same happens to her. Beth refuses, and instead, catches up to the villagers on a hill, where they are about to burn a wicker tree. Beth is told of Steve's fate, and she angrily pushes the village's leader into the wicker tree, grabs a villager's torch, '''''AND SETS THE LEADER ON FIRE!''''' Beth forces the villagers to sing; they comply, and leave. Beth ''finally'' tries to find a way out of the village, seeking the help of a young boy named Angus. Angus leads her through the woods towards another village, but this is a trap, as the other villagers come out of nowhere and capture Beth. The film ends with the audience being shown that Beth has suffered the same fate as the previous May Queens: being killed, embalmed, and sat on a wicker throne in the same room in the butcher shop.
* Also another film riffed by ''Series/MysteryScienceTheater3000''; ''WomenOfThePrehistoricPlanet''. A group of guys try to walk across a pit of acid on a small branch, and one them ends up falling in and dying. There was a path around the pit a few steps away.
* Several of the children who potentially stand to benefit from the tontine in the British ensemble comedy ''The Wrong Box'' grow up to be too dumb to live, as shown in a montage following the opening credits. Just to name two, an army sergeant orders his men to fire a cannon, oblivious to the fact that he is standing directly in its line of fire, and a big game hunter insists on waiting for a rhinoceros to charge before opening fire, and waits so long that he is swiftly gored when it finally does start charging.

* ''Film/{{Zombieland}}'': Wichita and Little Rock ride the rides at Pacific Playland, which light up, make noise, and naturally attract lots of zombies. Many fans think they may have been deliberately suicidal, even.

*** Its important to remember that all characters involved are stoned out of their minds at the time they start thinking this is a good idea.

* In ''Film/{{Zoolander}}'', Derek Zoolander lost his friends in a tragic gasoline-fight accident. The only reason he survived is that he spotted his image on the front of a newspaper and went over to look at it.

* In general, any character who knows about the illicit/supernatural/criminal activities of the antagonists, then says, 'They won't harm me because of what I can tell the authorities.' Cue the death scene.
* Most people in horror films, as they frequently hang out, party, and/or tour places full with danger, such as [[Film/ChernobylDiaries radiation-splattered ruins,]] [[Film/{{Piranha}} piranha-infested waters,]] and various other places. Special mentions go to the ''Franchise/FridayThe13th'' people, who keep going to Camp Crystal Lake, completely ignoring the growing number of mass murders that have taken place. Frequently [[LampshadeHanging lampshaded]] in spoofs.
* If your horror movie has a couple at the center, the man will most likely be this to the nth degree, as to keep the female character pure and unblamable, not to mention dull as heck. Particular offenders are ''ParanormalActivity'', ''Backcountry'' (seriously, the guy deserves a Darwin Award named after him) and ''From The Dark''. And if it's the female that is this, as in ''Film/Frozen2010''? Well, she will live, despite everyone wanting her to die.

* The whole race of Romulans in the latest installment of ''Film/StarTrek''. Their whole sun goes supernova thus destroying Romulus in the process? Sorry, but you must be plain dumb in order to let ''that'' happen (according to Star Trek Online, they caused it by testing weapons that were banned due to this specific reason). Not only do they possess a whole '''star empire''', which means they have more planets then just the one being threatened by the super nova, they should also have the technological possibilities to detect super novas '''in time'''. It's not like they happen as a total surprise. It shouldn't have been a problem at all to evacuate a planet in time. And to let Spock as the ''only person'' in the goddamned empire try to prevent it because they were too busy arguing. That's beyond dumb. Maybe more so, since the ship and technology Spock uses were built on Vulcan, which means ''somebody'' had sufficient advance notice and time to prepare a response.

** We also have the Vulcan bullies picking on Young Spock. It was clear from their reaction to Spock delivering a NoHoldsBarredBeatdown to one of them that none of them considered the possibility of their trying to "elicit an emotional response" in Spock might result in violence.
* ''Film/StarTrekIntoDarkness'': The top Starfleet brass hold an emergency meeting on top of a tower with ''large open windows''. It's not surprising when Harrison attacks them with a gunship. Especially because as Kirk noted only seconds before that happened, Harrison was a high ranking member of Starfleet himself and would thus know the protocol for the situation he created and where and when the top brass would meet.
** Also [[GeneralRipper Admiral Marcus,]] as noted by Harrison himself, thought he best way to combat the Klingons was to wake up a genocidal, sociopathic super-human and ''then'' threaten [[AFatherToHisMen his family]] so the guy will build weapons for Marcus. [[SarcasmMode Great plan!]]

** Both the Jedi and Sith Orders in Star Wars, which is especially made clear in the Expanded Universe. The Sith are a bunch of psychotic power hungry madmen whose [[ChronicBackstabbingDisorder backstabbing ways]] are almost always the reason they keep getting defeated. The Jedi are a bunch of emotionally dead people with an obsessive desire to keep an ineffectual government from falling apart that otherwise would without them, eventually leading directly to their final downfall, and their rules toward squashing all emotion and overcautious ways have been directly responsible for the fall to the Dark Side of members of their Order and subsequent rise of many Dark Jedi and Sith Lords on a near constant basis for thousands of years. Neither organization learns much of anything from these constant mistakes despite thousands of year of opportunity, and as a result eventually both have to be destroyed down to the last man and rebuilt from scratch before any significant changes are made.

** I'd honestly like to take a poll of women to see how many would continue shaving their legs if the skin ''started to slough off'' with noticeable amounts of blood and scraping noises to {{Squick}} anybody out.

** It was quite often stated that the cell phones had been disabled, very few people deserve to die for forgetting their phone in the car, but if anyone does, it's these two. I do agree their friend should have made more of an effort to announce himself.

** ''Film/X2XMenUnited'': So, you have a school for the members of a [[FantasticRacism severely hated group]], and this school possesses very advanced technology. Why on earth do you not have a security system? I mean, even if you don't do anything to stop invaders from just climbing over the wall and jumping through the windows, at least have an alarm so they don't catch half of everyone asleep!

* The one S.H.I.E.L.D. pilot in the climax of ''Film/{{CaptainAmericaTheWinterSoldier}}'' who ''has'' to mention that he and the other loyal pilots are "all the air cover [[Cap's]] got!" [[spoiler:Cue TWS relieving them of that burden.]]

* The one S.H.I.E.L.D. pilot in the climax of ''Film/{{CaptaknAmericaTheWinterSoldier}}'' who ''has'' to mention that he and the other loyal pilots are "all the air cover [[Cap's]] got!" [[spoiler:Cue TWS relieving them of that burden.]]

* ''Film/{{Elysium}}'': [[spoiler:Delacourt for upclose confronting a complete psycho like Kruger without any protection or guards.]]

* Frollo of Disney's ''[[Disney/{{The Hunchback of Notre Dame}} The Hunchback of Notre Dame]]''. While he is a cunning man, he acts on this trope near the end of the film when he climbs on top of the gargoyle [[spoiler: to kill Esmerelda]]. Considering that he is standing up straight on the over-hanging gargoyle, with no support whatsoever, means his body weight causes the aging statue to crack.

** Clove, [[spoiler: rather than just killing Katniss, starts [[EvilGloating gloating]] about how her group killed Rue. Thresh happens to be listening, and it ends badly for Clove.]]

** In the remake we have everybody as the original for all the same reasons ''except'' Barbara. She points out early on that the zombies are so slow they could just walk past and the idea is promptly shot down. [[spoiler:Towards the end of the movie she escapes by simply walking past them without even firing a single shot.]]

** [[spoiler: Newton]] announcing to a crowded shelter full of superstitious, frightened people that [[spoiler:the Kaiju is specifically hunting ''him''. Cue everyone backing away from him, making it very clear that they are fully prepared to sacrifice him to it to save their own skins]].

* ''Film/PitchBlack'': Paris, in a fit of blind panic after a creature swoops on the group, [[spoiler: screws over ''everybody'' by scrambling away, pulling out the battery powering the glow-stick type lights... including the ONLY source of light around his own torso. KarmicDeath ensues.]]

** [[CloudCuckoolander Shaun's mother]] should also be mentioned. What did she ''think'' would happen [[spoiler: opening the door to a zombie?]]

** Let's not forget [[spoiler:David standing ''right in front of the pub window'', seconds before he gets eaten]].

** Due to his wanting to show up the rookies, Olson waits until the absolute last moment before popping his parachute. Kirk and Sulu pull their chutes at a safe distance above the platform, but Olson turns out to have waited too long, and winds up dropping right into the path of the mining laser beam, completely vaporizing him [[spoiler:and the explosives he was carrying for destroying the drill]].

** ''Film/X2XMenUnited'': So, you have a school for the members of a [[FantasticRacism severely hated group]], and this school possesses very advanced technology. Why on earth do you not have a security system? I mean, even if you don't do anything to stop [[spoiler:invaders from just climbing over the wall and jumping through the windows, at least have an alarm so they don't catch half of everyone asleep!]]

** The sheer dumbness of giving something as deadly as a shark increased human brain power in the first place. That was bound to go well. Especially without sterilizing them.

* Madison, the birthday girl in ''Film/MySuperPsychoSweetSixteen''. While she and Skye, who happens to be the killer's daughter, are running from the killer, she picks that time to insult Skye again. You can guess what happens.

* Clive in ''Cold Storage''.

** Also Admiral Marcus, as noted by Harrison himself, thought he best way to combat the Klingons was to wake up a genocidal, sociopathic super-human and ''then'' threaten his family so the guy will build weapons for Marcus. Great plan!

** There is also the whole scam the sisters play, which relies on the mark doing very specific mistakes. To whit: Wichita tells the mark that Little Rock is infected and needs to be put out her misery, but Wichita can't shoot her own sister and begs the mark to do it. The mark has misgivings about shooting a little girl, Wichita agrees to do it herself, takes the gun, and then robs the surprised mark at gunpoint. If the mark is more pragmatic, there's a very good chance they'll just shoot Little Rock then and there.