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[[quoteright:350:[[Film/ScaryMovie http://static.tvtropes.org/pmwiki/pub/images/death-savety_8844.png]]]]
[[caption-width-right:350:Ummmmmm... can I [[Series/WhoWantsToBeAMillionaire use a lifeline]]? ]]

->''"Okay Marge, you hide in the abandoned amusement park! Lisa, the pet cemetery! Bart, spooky roller disco! And ''I'll'' go skinny dipping in that lake where the sexy teens were killed one hundred years ago tonight!"''
-->-- '''Homer Simpson''', ''[[WesternAnimation/TheSimpsons The Simpsons: Treehouse of Horror X]]''

The character who puts life and limb at risk by [[WhatAnIdiot doing things that no sane human being would do]]. Walking down the alley alone to tell his friend about the SerialKiller. Telling everybody in earshot he has [[HaveYouToldAnyoneElse vital evidence that he'll be taking to the authorities very shortly]]. [[CuriosityKilledTheCast Hovering in a known dangerous area]] [[NeverSplitTheParty without backup]]. [[PoorCommunicationKills Not telling the rest of the heroes about the upcoming trap laid out for them]]. BullyingADragon or MuggingTheMonster. [[WhatDoesThisButtonDo Touching buttons]] [[DontTouchItYouIdiot when told not to]]. JugglingLoadedGuns. [[PerilousOldFool Refusing to believe his glory days are behind him]]. [[BlackmailBackfire Blackmailing someone who has murdered before without some "if-I-die-the-truth-will-come-out" mechanism]]. Not only possessing GenreBlindness, but putting [[Franchise/TheHitchHikersGuideToTheGalaxy Zaphod Beeblebrox's]] [[HorribleJudgeOfCharacter Peril-Sensitive Sunglasses on over it]]. Even close friends have to {{facepalm}} upon hearing of his or her exploits. (Though it never [[FearlessFool penetrates their own heads]].) This trope is, surprisingly[[note]]or not[[/note]], TruthInTelevision, as many people can attest to, although we won't.

If the character's actions are motivated by romantic feelings, be extra careful when labeling a work with this trope. In this instance, a character putting him- or herself in harm's way for the sake of their love interest may not be enough. LoveMakesYouDumb or LoveMakesYouCrazy may better cover this scenario, and to apply those tropes alongside this one is perfectly redundant.

If a character is stupid, but does not put himself at an obvious risk of harm, it's not an example of this; see instead WhatAnIdiot, TheDitz, or IdiotBall. Compare ArtificialStupidity, the video game equivalent of this which is a result of AI rather than the script being against them. Contrast DeathByPragmatism and LetsGetDangerous. Not to be confused with EvilutionaryBiologist or TheSocialDarwinist, although [[ValuesDissonance they generally consider it a]] MoralEventHorizon [[ValuesDissonance to not kill the dumb]]. See also SuicidalOverconfidence, another video game version. LethallyStupid is when someone's stupidity simply causes havoc, instead of being the cause of their demise.

'''Note:''' This trope has been subject to some [[TropeDecay misuse]]. If you see any examples or {{pot hole}}s to this page in which the character's stupidity does not result in their demise, please remove them or point them to one of the alternative idiocy tropes.

As this is a DeathTrope, '''[[Administrivia/HandlingSpoilers expect unmarked spoilers on the subpages]]'''.

For RealLife examples, see the ''Website/DarwinAwards'' and ''WebVideo/WhatTheFuckIsWrongWithYou''.
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