History TooDumbToLive / Film

* ''Film/TwentyEightWeeksLater'' The US Army allows 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, except this time it's not an isolated set of islands.

* ''Film/TwentyEightWeeksLater'' The US Army allows 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.

* ''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.

* ''Film/MinorityReport'':
** Detective Witwer is able to discover a criminal conspiracy has been carried out by someone with inside knowledge of Pre-Crime, yet he somehow fails to consider the possibility that this person could be the guy with the most inside knowledge of anyone involved in the project, Lamar Burgess. Thus he explains his discovery to Burgess while both of them are isolated far from the police station and while the precog units are not functioning, thus handing Burgess the perfect opportunity to get away with murdering him. Burgess could not have come up with a better way to get murder a cop and get away with it then the one Witwer handed him on a silver platter.

** [[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.

* ''Film/{{Prometheus}}'': Ignoring scientific procedure was quite common among these supposed scientists, like 1) Removing you helmets in an alien environment. Even if the air is breathable, you don't know if there's any pathogens in it. 2) Finding an alien's head and trying to re-animate it with electricity, causing it to blow up. 3) Not having any sort of decent quarantine procedures outside on one scene. 4) Millburn tries to pet an alien-snake after it shows hostility.

* ''Film/OneHundredFeet''. A woman is being haunted by the vengeful ghost of her abusive husband. He's shown her that he can move anything in the house anytime he wants, so what does she do? She throws her wedding ring in the garbage disposal, then decides to fish it out with her hands. After narrowly avoiding losing her hand, she invites the neighbor boy over for some fun...

* ''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. Also, it never apparently occurred to him to put any kind of fail-safes against RobotMaid [[TurnedAgainstTheirMasters Kyoko rebelling]], and yet he constantly lets her handle knives and what not. Was there never really anything to stop her from just slitting his throat while he slept?

* ''Film/{{Taken}}'': Kim and Amanda 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.

* ''Franchise/AlienVsPredator'': The Predators in much franchise 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.

** Another character in the movie, Tatum (RoseMcGowan) is killed after trying to crawl through the pet door in an automatic garage door. Naturally, she dies when the killer does something she wasn't smart enough to do: open the door.

* ''Film/TwentyEightDaysLater'': The AnimalWrongsGroup at the beginning. After being explicitly told that a monkey is infected with a contagious disease, one of them frees it anyway, leading to a ZombieAcopalypse that kills nearly everyone in Great Britain, including most members of the animal wrongs group.

* ''Film/TwentyEightDaysLater'': The AnimalWrongsGroup at the beginning. After being explicitly told that a monkey is infected with a contagious disease, one of them frees it anyway.

** 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.]]

* ''Film/{{Signs}}'': The aliens 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.

* ''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. Also, it never apparently occurred to him to put any kind of fail-safes against RobotGirl [[TurnedAgainstTheirMasters Kyoko rebelling]], and yet he constantly lets her handle knives and what not. Was there never really anything to stop her from just slitting his throat while he slept?

* ''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. Also, it never apparently occurred to him to put any kind of fail-safes against Kyoko rebelling, and yet he constantly lets her handle knives and what not. Was there never really anything to stop her from just slitting his throat while he slept?

* ''100 Feet''. A woman is being haunted by the vengeful ghost of her abusive husband. He's shown her that he can move anything in the house anytime he wants, so what does she do? She throws her wedding ring in the garbage disposal, then decides to fish it out with her hands. After narrowly avoiding losing her hand, she invites the neighbor boy over for some fun...

** Especially in ''Film/JurassicParkIII'', when Amanda is shouting into a megaphone. Towards a forest. On an island she knows is filled with dinosaurs.

* In RobRoy, during a duel, Archibald Cunningham has Rob Roy essentially at his mercy. Archibald Cunningham is supposed to be an experienced swordsman, and the choreography for the most part averts InformedAbility, with only a very small number of unreasonable moments. Yet he holds the point of his blade still while taunting the man, allowing the injured Rob Roy to grab the blade and hold it fast before delivering the OneHitKill. It was common knowledge at the time, taught in fencing schools and in manuals, that you ''never'' give an opponent a chance to grab your blade. As long as the person grabbing the blade maintains sufficient force (as attested to in manuals and shown in reconstructions and research), they will not even be injured by the act.