Too Dumb To Live / Anime and Manga

Note: As a Death Trope, all spoilers on this page are unmarked.


  • 7 Seeds:
    • Unami, the chosen guide for Team Summer A. The members of the team are previous students of his, all whom he has bullied, physically beaten, verbally and sexually abused and overall is hated by all of them to a certain degree. One of them even said she'll kill him. And upon awakening in the future, first thing he does, he bursts into the room where they are and begins barking orders to the students that hate him, all who were issued guns! Of course, he ends up fatally shot and left to die alone... You can't really feel sorry for the guy.
    • Majority of the Team Summer A candidates. Despite being trained from birth onward to survive in nature and be self-reliant, they don't take the Final Test seriously and think it's not really dangerous. They quickly fall victim to various traps or dangers in nature, simply because they didn't use their heads.
      • Special mention goes to the girls who bullied Ayu. They make her go with them and use her as a sort of maid, making her cook for them every time. When they decide they want to eat something with chopsticks, they choose to make them out of branches from a poisonous tree. Despite these girls having the same knowledge about plants as Ayu, they make the chopsticks, eat and die from the poison.
  • The Animatrix:
    • Humanity to a certain extent in the segment, "The Second Renaissance Part 2". They basically cause their own defeat by blocking the sun, without any objections and without thinking or using common sense, to try to cut off the machine's power supply, but it also kills Humanity's vegetation and it cuts off Humanity's Vitamin D (ouch), and the humans were not able to adapt to this and are ultimately defeated by the machines.
  • Baccano!:
    • Inverted when Randy and Pezzo's stupidity leads to them becoming immortal.
    • Isaac and Miria, also Too Dumb To Die, as they'd probably fly under the radar of anyone who could kill them.
      • Not that they'd be able to anyway; it takes them until they're walking around the modern-day world to realize they haven't aged in about 70 years, and are thus also immortals.
  • Berserk:
    • The torturer of the Tower of Rebirth. Thinking that he has the upper hand because he locked the most dangerous enemies of his kingdom (aka the main characters) in a dungeon room, he proceeds to hang around to taunt them. When Guts slowly stands and asks in an unnervingly quiet and soft voice if he was responsible for Griffith's mutilation, the torturer pays no heed and proceeds to describe exactly how he tortured him over the past year, finishing by showing them his crowning jewel: Griffith's severed tongue, worn as a necklace. His death is brutal, quick and horrifically painful. Worse, he brags how nothing they do will succeed, because the door is three times thicker than any normal door. Too bad he never took Guts' weapon of choice into account...
  • Black Lagoon:
    • Chaka, not only the biggest asshole in the series, but also the biggest dumbass as well.
      • Thinking himself to be the baddest ass of them all, he obnoxiously hits on Revy in an attempt to get her to duel him, then beats the crap out of Rock in order to antagonise her enough to draw on him, until he gets dragged off by Yoshida. This, despite the fact that Rock and Revy are working for Hotel Moscow, whom his bosses are trying to conduct important negotiations with.
      • He decides to take over the group by kidnapping the heiress to the leadership of the clan with the help of a street gang, and holding her hostage in order to draw out Ginji, her katana-wielding, Badass protector, to kill him before selling the girl into sexual slavery. Predictably, Ginji and Revy tear the Mooks apart, whilst Chaka exits, dragging Yukio with him (and loses her after Rock blindsides him with some cleaning fluid, a bowling pin, and a "Fuck You!").
      • Later, he comes across Revy again, and again tries to get her to draw, because clearly he can take the woman who just tore through his entire crew like they were nothing. He starts counting down from ten... and she doesn't wait, and instead drop-kicks him in the face and delivers a "The Reason You Suck" Speech, before luring him to a nearby pool... where Ginji is waiting for him to deliver an extremely nasty, but very, very Karmic Death.
    • Rotton the Wizard seems like this at first, with his In the Name of the Moon spiel at his introduction, during which Revy shoots him. Subverted in that he's the only one who bothered to wear a bulletproof vest. And his current position as a maybe-Morality Pet to a Dragon Lady Knife Nut and a Chainsaw Good body disposal expert.
    • The Neo Nazi who stops to brag about how awesome his Hand Cannon is. While the vicious, murderously psychotic Dark Action Girl who effortlessly slaughtered his fellows is standing right in front of him. And has her weapon drawn. Needless to say, he gets blown away mid-rant for his trouble.
    • The Neo Nazis in general were this. They knew that there was another armed group in the area after the same painting that they were. What did they do after retrieving the painting and driving the Lagoon company away? They started to party. Loudly. With plenty of alcohol and not even a single guard posted. While they had a large supply of firearms on hand. Really, even without Revy and Dutch the idiots stood a good chance of accidentally shooting themselves up before the night was over..
    • Chen and Louvac are both this. Chen decides to hire Louvac to kill the Lagoon Company traders for working with Balalaika, then proceeds to brag about it to everyone in town, completely ignoring that not only is the Lagoon Company successful for being very good at what they do, but that said skill has earned them a lot of friends in high places.
      • Louvac and his men not only try to take on Revy (a badass of such renown in Roanapur that her presence bumped a bunch of mercenaries' price for a job from $1,000 to $30,000), but they try to shoot up the Lagoon Company's boat from both side... without staggering their positions, causing two of the boats to take each other out.
  • Bleach:
    • Driscoll boasts about killing Sasakibe to Yamamoto's face, then rubs it in further by using Sasakibe's stolen bankai against Yamamoto. Yamamoto's response is to fry Driscoll to the bone.
    • A captain is more powerful that the rest of his division (200+ warriors) combined and all shinigami know to stay well away from fighting captains as a result. When the Tenth Division captain accidentally crosses jurisdictional boundaries, a patrolling 13th division soldier runs over to protest, completely ignoring the fact the intrusion has happened because the captain is being pushed back by a captain-class enemy. The soldier is very quickly killed.
  • Bludgeoning Angel Dokuro-chan:
    • Sakura is this way around Sabato, always offering her a hand even when she had tried to kill him just seconds prior or allowing her to seduce him in her attempts to kill him. Her logic is, if she kills him, Dokuro can't. The eponymous Dokuro is an angel who can turn back time, meaning Sakura dies and then time is rewound to when Dokura wishes it to be.
  • Mobile Suit Gundam: Char's Counterattack:
    • The Earth Federation makes Char promise not to drop any giant space rocks on them...and pays him off with a suitcase full of money and a giant space rock. Guess what happens next. No, seriously, guess. Also, this film also marks the death of the titular character. Guess who is responsible for his death. Taking lessons from Vegeta, Char?
  • Darker Than Black:
    • Goran, the Russian Contractor in the second season. He's got Super Speed with none of the Required Secondary Powers. His reaction times aren't enhanced, he's not superhumanly tough, heck, he even gets sore muscles. He is defeated by a contractor whose power is to make it rain, because his superspeed made each raindrop hit with the force of a bullet. He also doesn't carry a weapon of any sort, meaning his offensive options are... well he's got none. Any attempt to punch or grab his opponent would liquify his arm.
  • Death Note:
    • Raye Penber, an F.B.I. agent who was sent in to shadow Light Yagami, as a potential suspect for Kira. Due to circumstances, Raye is forced to get into contact with Light... and proceeds to show his real ID to his target, whom he is following, because he is under suspicion of being the one who is killing people from afar. How could this possible backfire? So, Light proceeds to memorize his face and name and manipulates him via the Death Note into helping him kill the other agents sent to Japan, before letting Raye die from a Death Note-induced heart attack.
    • Naomi Misora, the fiancee of the above-mentioned, recently murdered F.B.I. agent figures out crucial information on the Kira case and then decides to trust Light with it after he's been acting creepy, following her around, and asking "Have You Told Anyone Else??" Incidentally, she decides to trust Light because he reminds her of L, lampshading that the two are Not So Different.
    • Someone who uses the name of Kira to pad his own pockets, knowing that Kira is a vengeful god of justice without much sense of mercy. Demegawa? Can you say "SAKUJO"/"DELETE?"note 
    • Misa Amane. After having her life extend twice by two shinigami, she then goes and cuts her life in half twice, by doing the "eye deal" again. She later commits suicide anyway.
  • Denpa Teki na Kanojo:
  • Devilman Lady:
    • Jun gets episode 1 going by encountering a strange woman (Asuka) stalking her. When Asuka comes to her door in the middle of the night, Jun, despite being afraid, unlocks her own door, willingly gets in a car with Asuka, lets Asuka drive her to a darkened area of the docks, and obediently walks into a deserted warehouse whereupon Asuka locks her in with a werewolf.
    • Also, Jun's girlfriend Kazumi dies when she leaves her hiding place for no good reason whatsoever.
  • Digimon Tamers:
  • Every single government in Dragonaut: The Resonance. One side commits several outright acts of war, which the other side ignores. The same government then kidnaps one of the dragons, which causes the hive mind of the dragon's homeworld to launch an attack which destroys a space station, and a battle which wrecks most of Mars. Who does ultimate blame get placed on? The rescue party. And in a separate incident, a clearly insane dragonaut attacks another dragonaut over a perceived slight at the spaceport. While a shuttle is launching. When he misses a shot, trashing part of the launch equipment (nearly getting all the other dragonauts killed, as they are in the shuttle), he blames his target for dodging. He doesn't even get reprimanded, let alone receive the court-martial that kind of action deserves.
  • Dragon Ball Z:
    • Frieza has been sliced in half, near dead, and was given a sliver of Super Saiyan Goku's power to survive on as an act of mercy. And what does he do with it? He tries to use it to kill the Super Saiyan from behind, despite the fact that it most likely wouldn't have made a dent. Needless to say, it doesn't end well for the tyrant. He got better, only to get Killed Off for Real by Future Trunks. It's even worse when he comes back in both Dragon Ball Z: Resurrection ‘F’ and its Dragon Ball Super adaptation - after being resurrected, his men tell him to just leave Goku and just deal with his empire instead. Instead Frieza decides to train, get stronger and go try to kick Goku's ass again. He dies.
    • Vegeta, to some extent. He has the bad habit of throwing furious raging blasts at his enemies, frequently with enough power to blow up the planet and thus kill himself, from oxygen deprivation if nothing else. Of course, Vegeta would rather die than lose, but he never even considers this detail, even when others scream it at him.
      • Also, he let Cell absorb Android 18. That was arrogant to the point of sheer stupidity.
      • The above is rather frequent with Vegeta due to his arrogance. When Vegeta is clearly winning, rather than simply finish his opponent off he'll taunt and play with them, giving them the chance to transform, power up, etc. and then hand him his ass. To be fair, both the heroes of DBZ and the villains will do this as well, but Vegeta does it the most often by far.
    • Dr. Gero created Androids 17 and 18, who were already rebellious teenagers when they were converted into being far stronger than he whom he had no reliable way of controlling. Then he converted himself into an android, only to base his design on the weaker models. Not content with that level of suicidal behavior, he continues to berate and threaten them despite the fact that he can't control them. His death came quickly. For an evil "genius", he's not too bright.
    • Androids 17 and 18. Despite Android 16, Piccolo, Krillin, Trunks, and Tien all warning them to run from Cell while he's distracted, repeatedly, both of them stayed, with 17 even arrogantly believing he could beat Cell by himself before he was absorbed.
    • During the Frieza Saga, one of Frieza's mooks comes in while he's berating Zarbon and confirms Frieza's suspicions that Vegeta had attacked a Namekian village and made off with a Dragon Ball. Unfortunately, he makes the critical mistake of admitting to Frieza that he killed the sole surviving Namekian without bothering to ask him where the Dragon Ball was, and gets vaporized for it.
    Frieza: You imbecile. You've disposed of the only witness.
    • Babidi. He controlled Majin Buu by threatening to seal him up again. Needless to say, eventually Buu got fed up and killed him.
    • Videl is a variation of this. She has enough sense not to pick fights she should know she can't win, but she's been known to be insanely reckless in other ways, such as knocking out all the thugs that hijacked a bus, including the one driving it, and then standing around celebrating instead of taking the wheel. By the time a passenger points out, "Hey, Videl! Who's driving the bus?!" they're about to go over a cliff. Since they're unable to stop in time, they do go over the cliff, surviving only because Gohan caught the bus.
    • During the Buu Saga, Chi-Chi walked up to Buu and slapped him while yelling at him for killing her oldest son. She gets turned into an egg and squished.
    • In the first movie, Dead Zone, Goku and Piccolo end up fighting the immortal Garlic Jr. And while he has the two on the ropes, Garlic Jr summons a portal to eponymous Dead Zone, and he is promptly knocked into it by Gohan.
      • Later on in the series, Garlic Jr returns, only to do the exact same thing. Keep in mind again: Garlic Jr has Complete Immortality. He could defeat literally anything in the universe by just poking it repeatedly. He went for this solution twice.
      • In Dragon Ball Z Abridged's take on it, the plot of Dead Zone is a script Krillin is pitching to Nappa. When pressed on the issue, Krillin admits that he wrote himself into a corner. Funny enough, this trope isn't so much in place, as Shenron responds to the wish by saying that he can't wait to see how Garlic Jr. manages to blow this.
  • Durarara!!:
    • All the gangs in the city of Ikebukuro have Rule #1: Don't screw with Izaya Orihara. However, the entire city has Rule #0: DON'T SCREW WITH SHIZUO HEIWAJIMA. The gangs in the city don't bother telling members the latter rule, since if you're dumb enough to break it, you're probably doing the gang a favor by getting yourself killed. This rule is prevalent that anyone who doesn't follow it is regarded as less intelligent than a public school dropout. Just about the only exception to it is the aforementioned Izaya Orihara, one of the few men capable of fighting Shizuo without facing major injury — the two outright despise each other, and Izaya makes it a habit to piss off Shizuo whenever he can, mainly because he can get away with it (though not for lack of trying on Shizuo's part).
  • Elfen Lied:
    • The female assistant in the first episode. The moment she saw the devastation that was being caused you would have expected her to realize that a noncombatant like herself should do the smart thing and get to the exit ASAP.
  • Fairy Tail:
    • Mirajane and her not quite dead little sister Lisanna are battling Azuma, a Blood Knight opponent who appears disappointed by his two supposedly weak opponents until Lisanna boasts that Mirajane is the famed "She-Devil" Mirajane who only becomes strong when using her Satan Soul transformation (which Mirajane clearly said she is refraining from using because she's low on magic power). So Azuma makes Mirajane do just that...by strapping Lisanna to a bunch of explosives and giving Mirajane three minutes to beat him before they explode, which leads to Mirajane making a Heroic Sacrifice to save Lisanna from the blast. So Mirajane, one of the strongest fighters at Fairy Tail's disposal during a time when they need as many strong fighters as they can get, nearly gets herself killed thanks to her sister's underestimation of their opponent. Fortunately for Lisanna, she realizes just how stupid it was of her to do that and wises up.
    • Something similar happens not long after, though in this case, it's more like "Too Dumb for Everyone Around Her to Live". Before Grimoire Heart came to attack, Fairy Tail was in the middle of an exam that Cana was taking very seriously to the point that she threatened to leave the guild if she failed. So what's the best thing to do when a bunch of uber-powerful opponents have come to fight, inadvertently interrupting the test in the process? According to Cana at the time, it's continuing to take the test as if there weren't any enemies to begin with, instead of helping her friends fight when some of them are falling left and right. To her credit, she didn't realize that some of her friends have already fallen, but what does she do next? After Lucy gives her a lead on how to pass the exam, she knocks out Lucy and abandons her to do just that. And this is while knowing that there are enemies powerful enough to kill them wandering around. And Lucy would have been killed if she hadn't woken up at the last possible second. Again, to Cana's slight credit, she did try hiding Lucy out of sight from potential enemies. But that didn't stop Lucy from being found anyway. Similar to the above example, however, Cana eventually recognizes her own idiocy and rushes to her friends' rescue.
    • The Tartaros arc features the titular guild, whose members are legitimate demons, trying to activate a powerful magic. To unlock this magic's seal they need to kill certain members (current and former) of the Magic Council, but don't know which ones, so they just opt to kill them all until they succeed. There is one, however, who is subverted to their purposes and helps them find the last former member with a seal. To save the trouble of tracking him down, the traitor takes the last part of the seal into himself, with the intent to give it to someone else so they can be killed and break the seal. He tells Tartaros' members this after taking the seal but before passing it on. A group that has a necromancer within their ranks, meaning he has no more value to them alive than dead in the first place. He's immediately Rewarded as a Traitor Deserves.
  • Fullmetal Alchemist:
    • In the manga version, several members of the Amestris military give Zolf J. Kimblee a Philosopher's Stone so he can test it to see how much more powerful he gets. Kimblee uses it to create massive destruction, upon his return they ask for it back, and Kimblee does what everyone who has spent 5 minutes with the man expects. He swallows the stone then kills the morons who gave arguably the most psychotic person in the series (only Envy is as close) a stone that upgrades his power. Maybe next time they should do some research on the guy they use for their experiment.
    • Kimblee later suggests that he faked being sane in order to pass the State Alchemist exam. Perhaps everyone except the Homunculi and those in on their plan was fooled.
    • Dietlinde Eckhart, the main villain of The Movie. She invades Amestris on the mistaken belief that it's Shamballa, which it shares no similarities with, and doesn't even make sense. Shamballa is supposed to be located near Tibet, and Amestris is in another dimension. She then tries to take over the place when the Thule Society has only about 1,000 members while Amestris is a heavy militarized nation with a much larger army. Her army is crushed in about 15 minutes.
    • Envy itself qualifies. Envy went on a huge rant about how it was the one who killed Roy Mustang's best friend, and almost hurt itself from laughing about it. Envy went out of its way to tell how it was also the one who started the Ishval War and how amusing it was to see such a huge battle over the death of one little girl that it killed. Envy finds itself being tortured with fire about two seconds later.
  • Fushigi Yuugi:
    • Miaka. Though Miaka doesn't actually die in this series, that is not due to lack of effort on her part. Time and time again, she runs headfirst into danger alone, despite not having any magic or compbat skills, and despite having 7 guardians whose sole purpose for existing is to protect her. She survives only because of the Suzaku 7 wage a vigorous battle with darwinism to keep her alive and the fact that most the enemies just want to kidnap her instead of kill her.
  • Gate
    • Zorzal El Caesar, second son of Emperor Molt and Crown Prince of The Empire, This guy is an asshole and rapist who believes he can take on the JSDF and win despite the fact the latter has far superior tech. The first thing he does once he takes the throne? Have his goons smear the JSDF's name by disguising as them and attacking the Alnus Living Community.
  • Gundam Build Fighters Try:
    • Team Try Fighters are going up against Team Angelfish, a group of Gunpla Fighters who do an aquatic theme as they're also part of the swim club. As the battle starts, Team Angelfish make note that all they had to do in their terrain, Tundra, is break through the ice, dive in, and give Team Try Fighters trouble. However, as the ice is frozen solid, they panic and decide to self-destruct instead of allowing a Curb-Stomp Battle. What makes it this trope is the fact that they gave up so easily. Their suits were a Z'Gok, Gogg and Zock, which were designed for aquatic landing, meaning they were good for both water and land. All three of them also had dangerous weaponry, especially the Zock, who had beam-type weaponry in front, behind and on top. They essentially took Crippling Overspecialization to a new art form.
  • Hellsing:
    • In the Cross Fire omakes, a cult honestly expect Heinkel and Yumie, who they (correctly) believe to be Vatican assassins to leave simply because the cultists insist the church is a holy site. The same assassins that are there because members of said cult launched a chemical attack on the Vatican and tried to assassinate the pope then publicly took credit for the attack. Naturally Heinkel and Yumie kill all of them.
  • Higurashi: When They Cry:
    • Right, Keiichi, go into that creepy basement with a self-confessed psychotic murderer. And after you survive that, feel free to go out in the dead of night to chat with her. note 
  • Himitsu no Akko-chan:
    • Akko-chan in the aptly named '_____' episode asks her magic mirror to make her deaf and mute, thus, more empathic to the new deaf kid in her class. After realizing that she just wished herself mute, and her magic mirror could only obey to spoken commands, she spends the whole episode as a non-verbal deaf girl, moving from curiosity to deep-rooted depression. Keeping her rationality until the realization of her newfound handicaps kicks in, she then starts acting in a completely unreasonable way, ranging from acting as she were completely uncapable of any kind of communication to running blindly in a dangerous, isolated place, knowing that, being unable to cry for help, she'd risk falling in a ravine and being left there to starve. Exactly what happens to her. On the top of it, the deaf boy "inspiring" her wish sees into her self-destructive ideas and manages to save her from certain death.
  • Initial D:
    • The last Saitama team's fourth season calls a bunch of gang-banger types to beat up Project D and neglects the fact that the gang-bangers are from the same region as Project D and thus likely to be fans and that the owner of the car they forced into a wreck during the practice runs (using a cheap trick of spilled oil) was the former boss of those same gang-bangers. The current boss was NOT amused at being made to look bad.
  • Inuyasha:
    • Kikyo gloatingly tells Naraku EXACTLY why he can't kill her (Onigumo's heart is inside him). As a result he is able to rid himself of it and later use Onigumo's Heart to go ahead and kill her.
    • We also have this with Tekkei, who, despite being a powerful youkai (or, rather because of that), doesn't seem to learn her lessons well, as what had her sick in the first place was eating a poisonous youkai, however, she tries to eat Naraku and this gets her killed.
  • Kage Kara Mamoru!:
    • The very premise of the series: a family has been secretly protected for ninjas for so long that they've lost the ability to survive normal life. The latest descendant, the female protagonist, therefore has a supernatural ability to walk blindly into trouble, and generally gets rescued before she even realizes what's happening.
  • Kagewani:
    • Takeru, despite having his crew killed off mysteriously, decided to film a cryptid so that he can gain fame in being the first person in Japan to actually see it live. He didn't live that long since the cryptid snuck up on him and killed him.
  • Kyogoku Natsuhiko Kosetsu Hyaku Monogatari:
    • The main character Yamaoka Momosuke. He has a habit of blindly trusting and attaching himself to even Obviously Evil people, trying to sacrifice himself for others and jumping in to save people from sword-wielding maniacs without any other means to defend himself than yelling "Please calm down!" He'd probably have died at least once every episode if it wasn't for Mataichi's team always saving his ass.
  • Mai-HiME:
    • Joseph Greer fatally shoots Alyssa with Miyu nearby, but does not run away immediately afterward, instead announcing his intentions for doing so. Within moments, an enraged Miyu kills him.
    • During her confrontation with Shizuru, Haruka not only unnecessarily insults Natsuki, but continues to insult Shizuru even as her Element is drawn rather than stop provoking her or run away as Yukino suggests, thus forcing Yukino to try to defend her, leading to the destruction of Yukino's CHILD Diana, and Haruka's own death.
    • When Nao first encounters Shizuru while attacking Natsuki, she is easily defeated. In response, she kidnaps Natsuki again, this time for the express intention of luring Shizuru out. To make matters worse, by this time, Shizuru has gone insane from Natsuki's rejection, and not only destroys her CHILD Julia, but tries to finish off Nao before Natsuki intervenes.
  • Mazinger Z:
    • Several characters of the series (including The Hero or its Tsundere Battle Couple) get at least one occasion where they seem determined to off themselves. The civilians thought it was a good idea remaining near from the place where a Humongous Mecha and a Robeast were fighting, or blamed the heroes for the destruction and deaths Hell and his lackeys were responsible of, or pressed the Government to yield EVERY TIME Dr. Hell was blackmailing it are good examples. A good, specific example is Yuri, Bratty Half-Pint Sayaka's cousin: Let's go over the facts, Yuri. You are a disabled, little Ill Girl can't run or move quickly because you need a wheelchair. You know there is a giant robot in the city, stomping on buildings and people. Kouji has gone out to stop it after telling you very clearly you must stay in home because you are safer. Still do you insist on leaving the home and go to where the giant robots are fighting because you have a crush on Kouji and you want to see him? Okay, you can leave. After all, what can possibly go wrong?
  • Mobile Suit Gundam: Iron-Blooded Orphans
    • Carta Issue had already met Tekkaden in battle, where they proved that they don't believe Talking Is a Free Action and attacked her while she was in the midst of a speech and disrupted her men's Attack Pattern Alpha mainly by ignoring it. She's sent to fight them again—and instead of simply destroying the train they're on, she stops them and tries to issue a formal challenge to a three-on-three duel of honor. To no one's surprise but her own, Mika attacks her before she's finished talking. When one of her men hangs around outside his cockpit yelling about the lack of honor, he's turned into a red smear in the snow as Mika proceeds to kill all three of them.
  • Monster:
    • Adolf Junkers. First, he runs straight into traffic, then he sees a security guard fall down dead, leaves his room, and runs into an unlit area at night. When he knows someone really nasty is trying to kill him. Is anyone surprised when Junkers is found and shot to death?
    • Richard Braun, who's investigating a string of serial murders, more or less deduces that Johan's behind them all. Yet he doesn't think he should tell anyone when Johan shows up at his apartment and invites him out. Shortly after this, he follows Johan up to an abandoned rooftop (in the middle of the night) while shouting, "I know what you're up to, kid!" To no one's surprise but his own, it ends badly.
  • Naruto:
  • Okane Ga Nai:
    • Ayase…
      • still trusts the cousin who sold him to pay off gambling debts
      • after gaining a measure of freedom he goes back to his old house to get a photo album, intending to come right back!
      • after one of his so called "friends" tries to rape him, follows him into an empty storage room after said friend tells him he's sorry
      • gets a job at a club which acts as a brothel.
  • One Piece:
    • Idiot Hero Monkey D. Luffy. He's a genius when it comes to fighting, and no fool when it comes to friendship, but this trope when it comes to almost anything else. Perhaps the most notable instance is in the Alabasta arc: Crocodile set a trap for them in his casino …by setting up a sign that directed VIPs to the left and pirates to the right. Luffy, who could not tell a convincing lie to save his life or anyone else's pre-Time Skip, goes right, and winds up in a Sea Prism Stone cage.
    • Civilians in One Piece are generally like this. They believe the propaganda of the World Government like helpless sheep, can't see truly Obviously Evil people like Spandam, and anyone with the name 'pirate', even if they have the reputation of saving entire islands, are labeled evil.
    • The Fake Straw Hat Pirates. Notably, they picked fights with members of the actual Straw Hats despite being very weak (though to be fair, Usopp's wanted poster doesn't show his face,note  both he and Nami had changed looks during the Time Skip, and Luffy was wearing a ridiculous Paper-Thin Disguise, so they hadn't recognized them) and tried to hunt them down after being casually defeated and mauled by them.
      • Their plan to take on the New World involved using Luffy's reputation to recruit an army of powerful pirates, then sending them out to take out any danger that the aforementioned reputation didn't scare away first. This might seem like kind of a clever plan at a casual glance, but the New World is loaded with pirates who still consider Luffy a rookie, and could honestly care less about his accomplishments up to that point; not to mention there are numerous obstacles and dangers that are far too much for any pirate that was available on Saobody at the time, or simply require knowledge or skill rather than muscle to navigate. Not only that, but they also attracted the attention of pirates who were only joining so they could kill Luffy unawares in order to boost their own reputation. Sentomaru, sent by the Marines to arrest them because their informants had mistaken them for the real deal, actually called them morons for impersonating the Straw Hats after mauling the fake Luffy. What added to their misfortune is that around the same time they started recruiting, the real ones were about to reunite and journey into the New World. Really, a combination of bad luck and stupidity ensured that the Fake Straw Hats were never going to make it out of Sabaody.
    • Hody Jones. Most of his plan was well thought-out and clever, and may very well have worked out as well as he hoped, were it not for one decision that he made that makes him fit this trope to a T: he deliberately provoked the Straw Hat Pirates. He knew of their reputation and everything that they had done, but he was too caught up in arrogance and fanatic racism to consider any human a threat to him. How does that turn out? He and his army of 100,000 are dropped onto the receiving end of a Curb-Stomp Battle against the nine Straw Hat Pirates and Jinbe.
    • This was Sanji's reaction when he found out that Caesar Clown, for all his genius, swindled money from Big Mom. That Big Mom. Small Name, Big Ego, indeed.
    • The World Nobles/Celestial Dragons. Extra credit goes to Saint Miosgard and Donquixote Homing, who learned the hard way that the only reason people don't attack them is the threat of retribution from an Admiral.
  • Ookami Kakushi:
    • Hiroshi. He's prone to things like staying in a car with someone making creepy advances on him, walking around town at night after witnessing a brutal murder, specifically walking around the areas another classmate warned him to stay away from, seeing nothing suspicious in being called up at night or being asked to go into an abandoned barn...
    • Isuzu, for the most part, manages to make the right decisions to stay alive until episode eleven, wherein she sees the villain (whom we should add is highly unstable by this point in the story) walking through the forest. Instead of reporting it to the authorities, she decides it would be a better idea to follow them into the forest alone. While wearing bells tied to her wrist. This Ax-Crazy has a gun.
  • Pokémon:
    • Ash Ketchum very frequently acts Too Dumb to Live. If it doesn't relate to Pokémon training, he hasn't a clue how to do anything. A very notable example is during the Pokélantis debacle. He starts off by touching things on suspicious-looking pedestals and sets off a rolling boulder that would've killed the whole cast if Brandon didn't show up. Brandon chews him out for being an idiot. What's Ash do next to prove him wrong? Runs off on his own, touches more things that look very much like they shouldn't be touched, and subsequently gets possessed by a dead king.
    • Cameron (Kotetsu), who appears in the second season of Best Wishes!, somehow manages to be dumber than Ash. At least Ash is smart enough not to bring five Pokémon to a full six-on-six battle.
    • The scientists in Pokémon: The First Movie. They created the most powerful Pokémon the world had ever seen...and then proceeded to tell him that they were planning to use him as an experiment, then started talking amongst themselves about putting him in a cage.
      • Giovanni in the same movie, actually. He told Mewtwo that he was "created by humans to obey humans" and, when Mewtwo began blowing up his entire laboratory, what does he do? Shout, "Stop this now!" Yeah, that's always worked in the past. Lucky for him he had Plot Armor...
    • The otherwise competent Oakley in Pokémon Heroes after the DMA was deactivated, touches the damaged Soul Dew after it was just used as a battery for the DMA, gained a dangerous glow and became something no one would dare touch. This destroyed the Soul Dew and caused the water surrounding the island city of Alto Mare which was controlled by the Soul Dew to form a massive tidal wave that would've killed everyone in the town including her. The fact that this act directly led to Latios' Heroic Sacrifice (the first Pokemon death in the series no less) is one of the reasons she's in The Fallen.
  • Ranma ˝:
    • Many, if not all, of the characters get at least one occasion where they act like this. However, this trope gets played to its actual conclusion in one late-manga story, which really makes it into Mood Whiplash. One character's father receives a scroll detailing a martial arts style which makes use of a lot of brute-force tricks, and a bearhug attack explicitly stated to be capable of snapping a man in half. Kumon Senior intends to use these moves to revitalize his dojo, which is dilapidated to the point it's being held aloft only by a single, rotting pillar, but he decides to master this spine-shattering bearhug by practicing on the pillar. Naturally, when he succeeds in learning it, the whole house collapses on top of him, killing him.
  • Rave Master:
    • Main character Haru Glory's mother Sakura. When someone is telling your husband about how they're going to make him suffer by being alone, you don't run up to them and let them impale you.
  • Robotech:
    • In the "New Generation" episodes we're told of a town that tried to fight off the Invid invasion with sticks, pitchforks and axes. The Invid always go around in mechas, the smallest and weaker being the 2.3 meters-tall Invid Soldier that is still invulnerable to normal small arms fire. The town survived, but only because the Invid (that showed up with a squadron of slighty taller but MUCH broader and stronger Scouts) apparently decided they were too dumb to pose a danger.
  • Rozen Maiden:
    • Kanaria has some shades of this during the series, but it becomes blatant obvious during the final battle of the second season: not only she is the cause of turning Suiseiseki's Heroic Sacrifice in a Senseless Sacrifice by going back to the battle field, she also is killed by Barasuishou after the strings of her violin snaps and she forgets that, since she has Suiseiseki's Roza Mystica, she could use her Green Thumb powers.
  • Sailor Moon:
    • Because Usagi/Serena is such a klutz (as well as a crybaby), the other Sailor Senshi/Soldiers/Scouts, and the two cats started pegging her as this (or at least that's what DiC's English version would like us to think...). However, this applies more to the first anime than to the manga (especially the crybaby part).
  • Saiyuki:
    • Koukaji in the anime version of the first series. He had previously been beaten with an inch of his life by Son Goku with his power limiter removed, and in the finale, he decides to try and fight him on his own again, and nearly gets killed, again. This wasn't in the manga.
  • Slayers:
    • Princess Amelia, and to a lesser extent, Naga the Serpent. The latter is boastful and arrogant to the point that she ignores the reality of the situation around her (leaving Lina to do away with whatever situation they're in), while the former's view of morality is so black and white that she winds up in dangerous situations; anything that turns gray leaves her dumbfounded. While Naga's intelligence varies, Amelia's is more a case of flanderization that spread to other adaptations - she certainly wasn't this trope in the light novels that the series originated from, and in the anime, at least, she grows out of this trope over time.
    • It also doesn't help for Amelia that she's a bit weaker than her companions; while Gourry the ditz swordsman can fall under this, he generally doesn't because he knows more than he lets on and is more skillful than any other swordsmen in the series.
  • Tengen Toppa Gurren Lagann:
    • The Red Shirts from the battle against Teppelin. Our leader has just obliterated himself against the mysterious shield surrounding our enemy's city? Quickly! More of us must ram into it so that his death will not be in vain!
  • Sword Art Online
    • The members of Guild Moonlit Black Cats are never bothered why their newcomer, Kirito, is a lot stronger than them despite being at the same levels (Kirito actually has twice amount of levels compared to the gang, but deliberately hides it). Instead they believe themselves to be strong enough to tackle an over-leveled dungeon head on. They get themselves locked in an obvious trap room with one treasure chest, where they easily get wiped out by a Zerg Rush.
  • Tokyo Mew Mew:
  • Tytania:
    • Duke Idris Tytania betrays another member of the clan he was sent to rescue, and stands by to watch while the enemy destroys his ship, presumably killing everyone on board, including Idris's subordinate, Berthier, who thought he was in on Idris's plans. Berthier actually manages to get to an escape pod and survives, though he is permanently crippled. Then, although he is presumed dead and could easily just take off, he goes back to continue serving the guy that just double-crossed and tried to kill him. Yeah.
  • Yu-Gi-Oh!:
    • Jounouchi/Joey's first Duel with Kaiba is like this. Sure, when you're up against a powerful monster and don't have something to beat it, the smart thing to do is keep throwing monsters out as meat shields until you get something that works. The problem is that Jounouchi plays all of them in Attack Position, meaning that every one Kaiba destroys chips away at his Life Points, so that when he finally plays one the few cards in his Deck that can stand up to Kaiba's Rabid Horseman, he's in prime position to lose as soon as Kaiba plays his signature Blue-Eyes White Dragon. Nothing was at stake with that Duel, thankfully.
  • In Yu-Gi-Oh! The Dark Side of Dimensions's prequel manga, Seto is so focused on seeing and dueling Atem that he listens to Sera and tries to break into the afterlife using nothing but his own brainwaves and without any sort of protection. It would have killed him if Mokuba hadn't intervened.
  • Yu-Gi-Oh! GX:
    • Idiot Protagonist Jaden/Judai nearly dooms the world by handing over the key to a Kill Sat, then expecting that Season's Big Bad, Sartorius/Saiou, to not activate it until after defeating Judai in a Duel first. The fact that said Big Bad didn't attempt to duel him first was a shock to many fans, as Saiou was the probably the first smart villain in Yu-Gi-Oh! Though to be fair, Saiou did have Edo/Aster in a deathtrap over a pit of lava and was threatening to kill him if Judai didn't give him the key, so Judai didn't have much choice.
      • Also, Saiou made a bit of a dumb move with that himself. The deathtrap was a scale, and to save Edo, Judai had to throw the key on the other side of the balance. It sounded like a good idea, but when Saiou actually went to get the key, Neos was able to block his path, which gave Kenzan time to pull Edo out of the way, which forced Saiou to Duel Judai. So, maybe Judai was dumb, but Saiou wasn't all-too smart either.
  • Yu-Gi-Oh! 5D's:
    • Divine needs a mention here: after being tricked into an Engineered Public Confession that he killed Misty's brother, not Aki, he then insults Misty's brother right in front of her. Knowing full well Misty is a Dark Signer, and knowing from firsthand experience that Dark Signers have supernatural powers far stronger than his own. And her Earthbound God Ccarayhua, a lizard nearly the size of a skyscraper, is standing right next to her. He is subsequently Eaten Alive.
    • Another good example in the franchise was Yliaster member Kodo Kinomiya. Assigned by Godwin to test whether or not Aki was a Signer or not during the Fortune Cup, he knew that Aki had powerful Psychic Powers, was able to literally warp reality during a duel and had very little control over her powers when enraged. Yet, he deliberately tried to make her angry during the duel by insulting her repeatedly. In fact, the original version, as opposed to the dub, doesn't even make clear whether or not he survives Aki's final attack. (Well, maybe you could blame it more on his greed than his stupidity. He had initially demanded five times his usual salary for doing it; eventually, he realized that it wasn't worth losing his life over, and tried to end the duel quickly, but by then, it was too late.)

http://tvtropes.org/pmwiki/pmwiki.php/TooDumbToLive/AnimeAndManga