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[[quoteright:244:[[Webcomic/{{Freefall}} http://static.tvtropes.org/pmwiki/pub/images/freefall22.jpg]]]]
[[caption-width-right:244:[[http://freefall.purrsia.com/ff1700/fc01654.htm He didn't and it did.]]]]

When said sarcastically, it's telegraphing a disaster. When said more seriously, it's an open invitation for the world to go to hell in a handbasket.

Say there is one critical thing that could happen that would cause a catastrophe that, left unchecked, would directly or indirectly result in disaster. But everyone in the story is assured that this critical thing will never, ever happen. Ever. [[GenreSavvy The audience]] [[MillionToOneChance knows better]].

If anyone ever mentions a [[DeflectorShields component]] in a reactor that is the only thing stopping a meltdown, or a [[RestrainingBolt lockout chip]] that is the only thing stopping a [[AIIsACrapshoot megalomaniacal AI]] from taking sentient control, rest assured that it will either fail, be stolen, or be destroyed, and things will [[GoneHorriblyWrong Go Horribly Wrong]].

In the event that someone in the know tries to warn his superiors to get the situation fixed, expect them to be [[IgnoredExpert flat out ignored]] or hints of actual impending face-melting doom dismissed as being WithinParameters and that ItsProbablyNothing. Again, the audience ''will'' know better.

TheLawOfConservationOfDetail helps this along; the scientist isn't going to bother to mention the failsafe unless it's going to, well, [[FailsafeFailure you know]]. When is the last time you were watching a movie, and someone mentioned "if this object was damaged, there would be a catastrophe!" and the object was [[TheyWastedAPerfectlyGoodPlot never mentioned again for the rest of the movie]]? Frequently combined with EinsteinSue, where ''one'' person in the work's universe sees the incoming problem (and works to fix it).

It's often used to drive a plot. Everything is normal and then this happens and [[AnthropicPrinciple all hell breaks loose]]. ''Very'' often triggers the DisasterDominoes.

A sub-trope of MillionToOneChance. Not always related with the [[OtherStockPhrases Stock Phrase]] "What could possibly go wrong?". In these cases, it's often said seriously by characters performing a [[ASimplePlan "simple" task]] where it does indeed appear that nothing can go wrong (although the end result is similar... something does). When this trope is in effect, [[ViewerStockPhrases it's said sarcastically by the audience]], or one of the more GenreSavvy characters in the story, when a very obvious danger is being foreshadowed.

See FinaglesLaw, TemptingFate, MuggingTheMonster, PhlebotinumRebel, FailsafeFailure and NothingCanStopUsNow. Compare GoneHorriblyRight.

'''NB:''' ''The trope title is being said sarcastically. Before editing, see OtherStockPhrases for the Stock Phrase, which, as described above, is [[SquarePegRoundTrope different from the trope]]. A use of this phrase in a non-ironic manner usually falls under TemptingFate.''



[[folder: Advertising]]
* [[http://www.youtube.com/watch?v=LgF2aSpyQDs In this Turkish car insurance commercial]], a reporter asks a driver if he has car insurance. The driver proudly says he doesn't need it as the car is gonna be fine. [[TemptingFate Besides, what could possibly go wrong?]] [[VideoGame/StreetFighterII Cue Ryu destroying the car]].
* [[https://www.youtube.com/watch?v=c-PfqVlBUuQ In this Cravendale commercial]], Barry (a boy made out of biscuits) goes off to jump in a lake. However, hey stays in the lake too long, leading the narrator to saying "What could go wrong?". Cue Barry's soaking head falling off, leaving the mother to recook his head.

[[folder: Comic Books]]
* ''ComicBook/TheSandman'': Said by the inherently GenreSavvy Morpheus the first time he summons the Kindly Ones. It is unknown whether this is an indication of how out of touch he was with stories due to his 80 year imprisonment or if [[spoiler: he knew that this phrase was TemptingFate (all three of them, actually) and it was the first step in his intricate plan to engineer his own death]].

[[folder:Fan Works]]
* ''Fanfic/MassEffectClashOfCivilizations'': At one point Valern says, "And besides, even if they prove to be hostile to us, they don't even use element zero. How advanced can they be?" He's talking about the [[Franshise/{{Halo}} UNSC]].
* DicussedTrope in ''[[https://www.fanfiction.net/s/10588283/50/Came-Out-of-the-Darkness Came Out of the Darkness]]''.
-->Crookshanks ran in with the Sorting Hat in his mouth. Hat was grinning. "[Hogwarts] Castle and I believe that it is a perfect idea."\\
"See," Cedric said, "Castle and Hat are on my side, what can go wrong?"\\
Hermione groaned, "The last thing said before any catastrophe, 'what could go wrong'."
* In ''[[https://www.fanfiction.net/s/10154618/6/Not-of-Blood Not of Blood]]'' [[SpeakInUnison Fred and George]] say exactly this when Remus and Sirius invite Harry's Hogwarts friends to a surprise birthday party some Muggle friends he made over the summer are also attending.
* In ''[[https://www.fanfiction.net/s/7330591/3/Harry-the-Hufflepuff-2 Harry the Hufflepuff 2]]'' Hannah Abbott and Susan Bones are dragging a reluctant Harry to the dueling club meeting second year.
-->'''Susan:''' Don't worry Harry. Nothing bad is going to happen. Professor Lockhart is just going to show us some basic dueling.\\
'''Hannah:''' It's not like anything can go wrong.
* In ''[[https://www.fanfiction.net/s/10305847/10/In-Love-of-Quidditch In Love of Quidditch]]'' Hermione says this word for word after she, Harry and Neville discover the dragon egg in Hagrid's hut.

[[folder:Films -- Animated]]
* ''WesternAnimation/TheIncredibles'' has "We're superheroes. What could happen?" Cue a montage of the history of superheroes getting sued, and the eventual banishment of the superhero identity altogether. And then the second time: "We're superheroes. What could happen?" [[spoiler:Cue giant robot.]]
* Invoked in ''WesternAnimation/CloudyWithAChanceOfMeatballs'':
-->'''Sam''': So, you're sure this is safe?
-->'''Flint''': Don't worry. I have a dangeometer that lets us know if the food is going to overmutate.
-->'''Sam''': What happens if the food overmutates?
-->'''Flint''': I dunno. [[TemptingFate But that'll never happen.]]
* In ''WesternAnimation/{{Megamind}}'', the titular character [[VictoryIsBoring is bored]] after he defeats his nemesis, [[TheCape Metroman]]. So he decides to create a new nemesis by giving someone else Metroman's superpowers. "What could possibly Go wrong?" ([[TheDragon Min]][[TheLancer ion]] asks. Well, instead of giving an altruistic person superpowers, he accidentally gives them to an average joe [[StalkerWithACrush (at best)]]. He decides to go along with the plan anyway. Then, ''after'' said average joe [[spoiler: decides he would rather be a supervillain, Megamind pushes all of [[BerserkButton Berserk Buttons]] at once]]. [[SarcasmMode Great plan]].
* In ''WesternAnimation/HowToTrainYourDragon'', Stoick decides to put Gobber in charge of training the kids to fight dragons while he's away.
-->'''[[DeadpanSnarker Gobber]]''': Oh, perfect. And while I'm busy, Hiccup can cover the store. Molten steel, [[AbsurdlySharpBlade razor-sharp blades,]] lots of time to himself... [[SarcasmMode what could possibly go wrong?]]
* Said literally by Genie in a musical number from ''Disney/AladdinAndTheKingOfThieves'', as a comment to the [[{{Disney/Aladdin}} post-]][[Disney/AladdinTheReturnOfJafar Jafar]] Agrabah. Shortly afterward, the titular King of Thieves reveals his plan to crash and rob Aladdin's and Jasmine's wedding.
* Cera says this in the second ''WesternAnimation/TheLandBeforeTime'' movie.
* ''WesternAnimation/ThePowerpuffGirlsMovie'': Jojo assures the girls that Townsville will love them after they help him with his plan. Suuuuuure, they will.

[[folder:Films -- Live-Action]]
* This trope is such a central part of the movie ''License to Drive'', not only is the exact phrase used, not only is it used by the main character, not only is the moment he says it featured prominently in the movie's trailer... but he addresses the question [[NoFourthWall directly to the audience!]] Of course, as it turns out, the answer is [[HilarityEnsues "practically everything that could."]]
* In ''Franchise/StarWars - Film/ANewHope'':
--> '''Commander #1:''' We've analyzed their attack, sir, and there is a danger. Should I have your ship standing by?
-->'''Grand Moff Tarkin:''' Evacuate? In our moment of triumph? I think you overestimate their chances.
** The {{Radio}} adaptation puts his overconfidence down to having just been told by Motti that he could use the Death Star to overthrow the Emperor and rule in his place.
* From ''Film/{{The Mummy|1999}}''. They find the ancient Egyptian "Book of the Dead", and Evey decides to read from it. "No harm ever came from reading a book", she says. Cue the eponymous Mummy waking up and trying to kill everybody.
** Played through again in the sequel and [[LampshadeHanging lampshaded]].
-->'''Eve:''' It's only a chest. No harm ever came from opening a chest.
-->'''Rick:''' Yeah, and no harm ever came from reading a book. Remember how that one went?
* ''Film/RoboCop1987'': Let's test a new model of robot police enforcer with live ammunition! What Could Possibly Go Wrong? [=OCP=] never learned their lesson - they do the same again later on with the "new and improved" Film/RoboCop2.
* [[LampshadeHanging Lampshaded]] by the ever GenreSavvy Peter Venkman in ''Film/{{Ghostbusters 1984}}'': [[SarcasmMode "Why worry]]? Each one of us is carrying an unlicensed nuclear accelerator on his back".
* In ''Film/ZackAndMiriMakeAPorno'', Zack uses the fateful words "What Can Go Wrong?" the night before the crew was planning to shoot the real action for their movie. Since this happens only halfway in the movie, you don't need to be a genius to [[TvTropesWillRuinYourLife know what to expect]] after that phrase.
* In ''Film/BabesInToyland (1986)'' one of the good guys explains that he's been collecting the evil of the world, distilling it to its essence, and sealing it into a bottle.
* ''Film/TheTerminator'': "There's over 30 cops in this building. You're perfectly safe here." Oh, how wrong you are, Detective Traxler.
* The print ad for the 1973 movie ''Film/{{Westworld}}'' reads "where nothing can possibly go worng [sic]".
* ''Film/DeepBlueSea''. A research base experimenting with genetically enhanced super-intelligent sharks is placed in the middle of the ocean.
* ''Film/HotShots'': Pete "Dead Meat" Thompson is being treated for his injuries. When his friends express concern, Dead Meat says, "I'm in a hospital! What could go wrong?: [[spoiler:The next scene is Dead Meat's funeral.]]
* ''Film/TheLadykillers'': Professor Marcus says this when Mrs. Wilberforce has unknowingly collected the stolen money. From then on, ''everything'' goes wrong.

* ''Literature/{{Animorphs}}'': Since improvising is a big part of their plans, this tends to happen often. Tobias even lampshades this in his own plan at one point.
* ''Franchise/JurassicPark''. Although in this one, the critical "thing" that could happen (the control system being hacked, among other things) isn't clearly foreshadowed. But c'mon, an island full of vicious dinosaurs run by an man who continuously insists everything is perfectly safe is just [[TemptingFate asking for trouble]]. (In the book, this is all but Ian Malcolm's sarcastic catchphrase.)
* This is the plot of the book and film ''Fail Safe''. An accidental nuclear attack on the USSR is impossible, Mr. President. And ''Film/DrStrangelove''. In fact, they sued ''Fail Safe'' because it was so similar.
* In the novel ''The Amorous Umbrella'' the hero is trapped in a world based on the more melodramatic 1950s soap operas. By that world's natural laws, the surest way of committing suicide is to say ''"I've never felt better in my life"''.
* In the great Indian epic ''Ramayana'', a Rakshasa general leads his 14,000 troops against one man: Rama. His last words: "He's only one man."
** Ravanna the Demon-King was so hard to kill because of blessings he extorted from Brahma that prevented gods and demons and such-like from killing him. He disdained to get immunities from humans or animals, because they were mere food. What could they possibly do?
* One of Creator/SpikeMilligan's silly poems for kids has the King of China declare "I've never felt finer!" and then promptly keel over and die.
* W. D. Robert's children's mystery, entitled "What could go wrong?" The answer? Just about everything that could when you have three kids (one of whom is very accident prone) and send them off to visit their aunt--alone. Oh, and don't forget the guys with guns.
* In ''Literature/SeptimusHeap'', [[spoiler: Marcia's comments about Septimus's '''Darke Week''' opening up channels for the '''Darke''' to come out and Septimus's reassurance against it already foreshadow the outbreak of the '''Darke Domaine''' in ''Darke'']].
* Subverted in ''Literature/HarryPotterAndTheChamberOfSecrets'' when Ron asks "Have you ever heard of a plan where so many things could go wrong?" and while things ''don't'' go exactly according to plan, it does go mostly right.
* ''Creator/JeromeKJerome'' 's ''Literature/ThreeMenOnTheBummel'':Three Englishmen go on a cycling trip through the Black Forest area of Germany around the turn of the last century. One of them speaks fluent German. Exercise, beautiful countryside, good beer. What could possibly go wrong?
* ''Creator/JohnRingo'' 's ''Literature/TigerByTheTail'' has the Kildar and Adams watching their team perform an assault, when the following exchange occurs:
-->Adams: "So far so good. You know what that means."\\
Kildar: "Yeah, it's bound to go to hell sooner or later. Wait, let me make sure. What's the worst that could happen?"\\
Adams: "Oh, you evil bastard."
* ''[[Literature/{{Dortmunder}} What's The Worst That Could Happen?]]'' takes its title from an offhand remark Dortmunder makes before he embarks on the initial crime of the novel; burgling an empty house. Needless to say, this crime goes horribly awry and Dortmunder gets arrested. After he escapes, he embarks upon a series of crimes in an attempt to recover the ring that was stolen off him by the householder who caught him. The phrase gets repeated before each of these crimes. Atypically, these crimes are spectacularly successful and net Dortmunder the biggest profits he ever makes in the books, but he fails to obtain the one thing he actually wants: his ring.

[[folder:Live Action TV]]
* The premise of every episode of the 1984-86 US TV series ''Series/CrazyLikeAFox''. The series starred Jack Warden as Harry Fox, a free-spirited private detective who lived by his wits and John Rubinstein as his high-strung attorney son Harrison who unwillingly and frequently found himself dragged into his father's cases. The show's opening would always feature Harry and Harrison talking on the phone in their offices like this:
-->'''Harrison:''' Hello?
-->'''Harry:''' Harrison, I need your help.
-->'''Harrison:''' Dad, you keep forgetting. I'm a lawyer. You're the detective!
-->'''Harry:''' Aw, come on son. All I need is a ride. What could possibly happen?
* Jeremy Clarkson saying, "How hard can it be?" on ''Series/TopGear'', always uttered before they show a segment where the presenters have to work on cars.
---> '''Richard''': Oh, how I've missed the pang of dread every time you say the words "''How hard can it be?''"
** Lampshaded by Clarkson himself quite often when he says, after discovering just how hard it '''can''' be,
---> '''Clarkson''': [[CatchPhrase That's not gone well]].
* In the ''Series/{{Angel}}'' episode "Spin the Bottle," Lorne introduces the {{Phlebotinum}}:
-->'''Lorne:''' A memory spell provided by one of my clients that is guaranteed to bring our Cordy back to the way she was.
-->'''Angel:''' Guaranteed?
-->'''Lorne:''' No pain, no side-effects. I'm telling you, swingers, [[TemptingFate there's no way this can fail]].
-->''Cut to Lorne, narrating''
-->'''Lorne:''' So, I'm an idiot. What are you perfect?
* A fine example in the ''Series/BuffyTheVampireSlayer'' episode "Once More With Feeling":
-->'''Dawn:''' Come on, songs, dancing around... What's gonna be wrong with that?
** Snap cut to the demon Sweet looking at one of the dancers [[spoiler:burst into flames]].
** Lampshaded in an earlier episode:
-->'''Xander:''' As long as nothing really bad happens between now and then, you'll be fine.
-->'''Buffy:''' Are you crazy? What did you say that for? Now something bad is gonna happen!
-->'''Xander:''' Whaddaya mean? Nothing's gonna happen.
-->'''Willow:''' Not until some dummy says, 'as long as nothing bad happens!'
-->'''Buffy:''' It's the ultimate jinx!
-->'''Willow:''' What were you thinking? Or were you even thinking at all?
*** He then goes on to compound the error by saying
-->'''Xander:''' You don't know. Maybe this time it'll be different.
* [[LampshadeHanging Lampshaded]] on ''Series/TheWestWing'':
--> '''Toby''': It's not going to be a big deal.
--> '''Sam''': Isn't that what we usually say right before something becomes a big deal?
** Played straight in "Mr. Willis of Ohio":
-->'''Josh:''' The President's daughter, chief of staff's daughter, a Georgetown bar and Sam. What could possibly go wrong?
* ''Series/DoctorWho'':
** [[Recap/DoctorWhoS28E9TheSatanPit "The Satan Pit"]]:
--->'''Ida:''' We've come this far, there's no turning back.\\
'''The Doctor:''' Oh, did you have to? "No turning back"? That's almost as bad as "Nothing could possibly go wrong" or "This is gonna be the best [[TwistedChristmas Christmas]] [[Series/{{Eastenders}} Walford's]] ever had."
** The Doctor later lets loose with this at the start of the episode [[Recap/DoctorWhoS30E10Midnight "Midnight"]]; his tone suggests he wants something to go wrong. And it does, and he's very sorry by the end of the episode.
** In [[Recap/DoctorWhoS32E4TheDoctorsWife "The Doctor's Wife"]] he's knocked together an improvised TARDIS from spare parts.
--->'''The Doctor:''' Right, perfect, look at that; what could possibly go wrong? (''bit falls off the console with a crash'') That's fine; that always happens.
** ''[[Recap/DoctorWhoS17E5TheHornsOfNimon "The Horns of Nimon"]]'' -- it gets lampshaded:
--->'''Romana:''' Don't you think that's a bit dangerous?\\
'''The Doctor:''' No, I don't. What could possibly go--\\
(''lurch; the Doctor falls'')\\
'''The Doctor:''' Ow! Wrong. You know, I've simply got to stop saying that. Every single time I say what could possibly go wrong, something goes--\\
* The predictable SitCom variety is parodied on ''Series/ThatMitchellAndWebbLook'', in the "Get Me Hennimore" sketches. The boss gives his TheDitz employee a truly preposterous set of tasks to do, with maximum scope for confusion, embarrassment and general disarray, and tops it off by [[TemptingFate wondering aloud how his instructions could possibly be misconstrued]]; GilliganCut to the smoking aftermath. "[[FirstNameUltimatum HenniMOOOORE!]]"
* In the ''Series/StarTrekDeepSpaceNine'' episode "Our Man Bashir", Garak ends the teaser by saying "What could possibly go wrong?" Well, it's probably a LampshadeHanging for the frequency of a HolodeckMalfunction in a fairly trope-heavy episode. The holodeck later malfunctions and they're stuck in a ''Film/JamesBond'' simulation for the entire episode.
* In ''Series/HoneyIShrunkTheKids,'' when Wayne says it, ''the dog he's talking to'' leaves the room.
* Creator/JimmyFallon used this in a joke while hosting the 2010 Primetime Emmys:
-->"Creator/{{NBC}} asking the host of ''Series/LateNight'' to come to Los Angeles to host a different show, what could possibly go wrong?" Camera cuts to Creator/ConanOBrien in the audience.
* On ''Series/DoogieHowserMD'', Doogie's best friend is trying to convince him to go with him to check out an car after work. He warns Doogie not to try to get out of it with some gallbladder emergency. Doogie assures him it's an Wednesday and nothing ever happens on an Wednesday. Then he walks away from the TV where the news announcer says "The Verdict in the Rodney King Trial has just come in," and the Intro begins.
* Said word for word by Dean in the season 7 finale of ''Series/{{Supernatural}}'', about [[DealWithTheDevil making a bargain with Crowley.]]
* In the ''Series/MysteryScienceTheater3000'' episode covering ''Film/{{Soultaker}}'', during one of the host segments, when Mike declares that despite all expectations he's fixed the ''Satellite of Love''.
-->'''Mike:''' ...what could possibly go wrong?
-->''warning beep, overhead oxygen masks drop''
-->'''Servo:''' How about '''everything?!'''
-->''all scream as'' [=SoL=] ''nosedives''
* Crichton on ''Series/{{Farscape}}'' has said this non-ironically several times. And ''immediately'' [[GenreSavvy tries to take it back]] afterwards. It doesn't help.
* Being very GenreSavvy, Chuck and Morgan on ''Series/{{Chuck}}'' are very quick to comment if someone says it. Hilariously, even ''Casey'' calls Sarah out when she invokes this trope.
* ''Series/StargateSG1'': In "Arthur's Mantle", Carter is fiddling around with an Ancient device and discovers the device is emitting a fluctuating energy signature.
-->'''Carter''': I'm gonna try to stabilize it.
-->'''Mitchell''': Sure. What have you got to lose?
-->They're both immediately put "out of phase" and can't interact with the rest of the cast. And Mitchell is usually so GenreSavvy.
* ''Series/MythBusters'': The {{narrator}} often uses this phrase, as do the hosts on occasion. When the Narrator uses it, something usually (but not always) goes wrong; when the hosts use it, they're usually using it as ironic LampshadeHanging of how dangerous the situation is, so it's a toss-up as to whether something actually ''will'' go wrong.
* {{Subverted|Trope}} in ''Series/{{Malcolm in the Middle}}'': Reese and Malcolm [[ItMakesSenseInContext blackmail a pervert to facilitate underage gambling]], and Malcolm [[ThinkingOutLoud says this trope to the audience]]. Nothing really bad comes of the scheme, and they're never found out - the only problems come from what they spend all their winnings on.
* In the ''Series/FatherTed'' Christmas episode Mrs. Doyle informs Ted that in his absence Dougal has conducted a funeral service. Ted is horrified but Mrs. Doyle asks how bad it could be. Cut to the cemetery, where the mourners are distraught, the hearse is on fire in the grave and Dougal is looking even more bewildered than usual.
* These exact words are uttered in the Season 4 episode 22 of ''Series/RaisingHope.'' "We have three days, your father's credit card, and a wedding planned by an eight yearold. What Could Possibly Go Wrong?"
* ''Series/WhatCouldPossiblyGoWrong'' is the ''title'' of a show on Discovery revolving around this trope. The initial idea/inspiration for a build is never terribly well thought through, but that won't stop the hosts from trying it anyway.

[[folder:Newspaper Comics]]
* ''ComicStrip/CalvinAndHobbes'', about Calvin's plan to push the car out of the garage so they can use it as a clubhouse:
-->'''Calvin:''' We'll move it 10 feet. What could possibly go wrong?!
-->'''Hobbes:''' Whenever you ask that, my tail gets all bushy.
** And with good reason. The car winds up rolling out of the driveway, down the road, and into a ditch.
* ''ComicStrip/{{Dilbert}}'' has had its characters making any number of observations to this effect, but [[http://www.dilbert.com/strips/comic/2012-10-01/ this]] is one of the most blatant examples:
-->'''PointyHairedBoss:''' [[MistakenForPedophile Offer them candy. Kids love candy.]]
-->'''[[DeadpanSnarker Dilbert]]:''' [[SarcasmMode I don't see how this plan could go wrong.]]

* Oh, boy! It's a title of a oddball story from about Tour De Paris for prisoners. If you don't believe me--check this out. [[http://www.reuters.com/article/oddlyEnoughNews/idUSTRE54O38O20090525]]

[[folder:Theme Parks]]
* In ''Ride/JimmyNeutronsNicktoonBlast'', Jimmy responds, "What could go wrong?" when Carl questions how safe it is to have mere guests help chase down Ooblar in the "slightly unpredictable" Mark I rocket. Even further foreshadowing the chaotic events of the ride, Jimmy proceeds to turn on the Mark I rocket, which immediately sparks and sputters in response.

[[folder:Video Games]]
* VideoGame/{{Bubsy}} is responsible for the {{Trope Namer|s}}, with it being his catchphrase. He also extensively says it in the [[WesternAnimation/{{Bubsy}} unaired pilot]], and the saying is even the pilot's title!
* ''VideoGame/{{RuneScape}}'': "A creepy child in a dark clearing. What could go wrong here?" [[spoiler:She turns out to be an immensely powerful vampyre, that's what.]]
* ''VideoGame/DeadSpace''; breaking down entire planets for their mineral resources, hmm, not too bad, already pretty dangerous, but it's mundane dangerous, what are the odds of finding some [[TheVirus VERY unwanted cargo]] when you start mining the place? [[spoiler:Though you eventually discover it's closer to GoneHorriblyRight.]] Given how much [[HollywoodScience Hollywood Biology]] you need to justify a species surviving having its planet torn apart...About a MillionToOneChance.
* In ''VideoGame/DrMuto'', Dr. Muto says this before turning on his everlasting power source, which five seconds after being turned on blows up the entire planet, except for his house.
* ''VideoGame/HalfLife1''. [[ForScience Black Mesa]]. "The possibility of a Resonance Cascade scenario is extremely unlikely". Of course, there wouldn't have been a game without it. (''Machinima/FreemansMind'': "Yeah, well, that's why we have insurance.")
* Usedd in ''VideoGame/DragonAgeII'', in which Varric observes that 'I don't like this' is right up there with 'What could possibly go wrong?' when it comes to TemptingFate. This is also one of Snarky! Hawke's lines during their last talk with Varric before the final battle, and he will call you on it again.
* ''VideoGame/HomeworldCataclysm''. Let's open a million years old alien pod after having tucked ourselves in the furthest corner of the galaxy, where no one can come to our aid in case something goes wrong!
* ''VideoGame/{{Persona 2}}'': ''Innocent Sin'', when the party is at [[TheVeryDefinitelyFinalDungeon Xibalba]], where it's revealed later on that [[spoiler:their thoughts become reality there]]: (FanTranslation version.)
-->'''Ginko''': I've had just about enough! The scenery here never changes!! Enough, enough, enough!
-->'''Eikichi''': Quit whining!! How about this idea? Would you be happier if there had been a waterfall or somethin'? Huh!?
-->'''Maya''': Shh! Be quiet... That noise... Could it be!?
--> ''(Cue Waterfall up ahead.)''
* ''VideoGame/{{BioShock|1}}'': Andrew Ryan wakes up one day and goes, "I know, I'll create a submerged city with 1940 technology where the law of the jungle is the only real rule, and everyone is free to do whatever they wish as long as it profits them. What Could Possibly Go Wrong" When the player stumbles upon it, the question that comes to mind is "What ''didn't''?"
* In ''[[VideoGame/ChzoMythos Seven Days A Skeptic]]'' practically everything on the ship is built on the assumption that nothing will go wrong (whereas in RealLife the opposite holds true). Examples include escape pods that need to be fueled up for hours before use and the captain's suite emergency unlock, which is installed on the inside. The ship's scanners can also track the number of living beings on board but not their locations, the power source is mounted in a huge shaft with no railings, there's a glass-domed observation deck with no apparent protections against micrometeorites (or radiation, for that matter) and the prison cell uses a force field instead of metal bars that won't vanish in case of power failure. No wonder the engineer spent most of his time hiding in the dining area and making the counselor fix things for him - he must've had a breakdown on the first day and been in denial since.
* In ''Franchise/MassEffect'', the [[SapientShip Reapers]] play the BatmanGambit by letting species of the galaxy find their technology littered across several star systems just so they can advance to a desirable state, ripe for a galactic harvesting. Really, [[TemptingFate how can this backfire]]?
* In ''Franchise/StarWars: VideoGame/JediKnightJediAcademy'', Jaden Korr is tasked by Kyle Katarn to destroy illegal weapon caches in the planet Ord Mantell. He says: "This should be easy. Just plant some charges, watch the fireworks and come home. What can go wrong?" Well, one notorious clone bounty hunter might just appear.
* Hana says this at the end of ''VideoGame/FearEffect2RetroHelix''. It shows the King of Hell surrounded by fire and laughing hysterically. Those who have played the first game should know exactly what could go wrong.
* The haiku that describes the Black Cat familiar in ''VideoGame/KingdomOfLoathing'' is "What a cute kitty!/What could possibly go wrong,/with her at your side?" It is one of the two most actively harmful familiars in the game, reducing experience gains, depleting MP, destroying randomly dropped items, and occasionally preventing the use of skills and items in combat.
* In ''VideoGame/WorldOfWarcraft'', an Alliance quest in Vashj'ir has you go kill some demonic octopi that are mind-controlling some of the gilblins and take their heads. The NPC who gives you the quest then suggests you put one of them on your own head, quoting this trope. It turns out the demonic octopus wasn't quite dead...
** Also in Mt. Hyjal, a quest giver who wants you to save panicked bear cubs stuck in trees by throwing them onto a trampoline states "Nothing can go wrong with this plan.". Unless, of course, you miss the trampoline and throw the cubs to an untimely, squishy death.
* In ''VideoGame/SaintsRowTheThird'', after blowing up a S.T.A.G. aircraft carrier, Pierce will ask what more S.T.A.G. could possibly throw at them. One {{cutscene}} later, S.T.A.G. has [[spoiler: imposed martial law, raised all of the bridges, and filled the streets with tank squads]].
* In ''VideoGame/Halo4''[='s=] ''Spartan Ops'', there is one chapter titled "Nothing Can Go Wrong". The next chapter is, of course, titled "Everything Has Gone Wrong".
* In ''VideoGame/DungeonsAndDragonsOnline'', in the level 7-8 ''Sentinels of Stormreach'' quest chain, at the beginning of the ''Island Assault'' quest, you are discussing with a House Deneith captain how to go about approaching the island fortress of pirates that are attacking Stormreach, where you are supposed to sabotage its defenses to allow for a full House Deneith invasion. The Captain and the House Deneith Spymaster both offer to bring you to a sensible, remote spot on the island, from where you'd have to make your way inside. The House Deneith archmage however, suggests to magically teleport you, despite a teleport lock protecting the island, by going as close as the teleport lock allows. Following his plan, your character proclaims '''"Of course! Clearly, nothing could go wrong with this plan!"''' [[spoiler: JumpCut to your teleport transporting you right onto the bridge of an anchored pirate ship, '''immediately''' being attacked by a red, named [[ALoadOfBull Minotaur]] MiniBoss.]]
* Almost said word-for-word in the job application ad at the beginning of ''VideoGame/FiveNightsAtFreddys2''. Let's just say that it '''starts''' at [[AIIsACrapshoot murderous animatronics]] ''[[FromBadToWorse and gets worse from there.]]''
* In the introduction to the "Tool Fool" quest in ''Archie: Riverdale Rescue'' Archie, who plans on using a calculator to help him with his algebra homework, says this word for word before realizing that he forgot to get new batteries.
* Subverted by ''VideoGame/TheBookOfUnwrittenTales'':
-->'''Nate:''' Oh come on, this temple is ancient. What could happen to us here?
-->'''Nate:''' Shouldn't something unexpected have happened there?
** [[spoiler: {{Double Subver|sion}}ted a moment later, when the floor collapses under the characters.]]
* In ''VideoGame/FallenLondon'', if you want to convert a large number of Maniac's Prayers into Correspondence Plaques, the associated option is described entirely with the phrase, "This is a plan without a flaw nor any possibility of error!".

[[folder:Web Comics]]
* [[http://www.shamusyoung.com/twentysidedtale/?p=1258 This strip]] of ''Webcomic/DMOfTheRings'' is an exemplary usage.
* ''Webcomic/ARedtailsDream'': as soon as they say [[http://www.minnasundberg.fi/comic/page05.php that]], you know some disturbances are definitely going to be made.
* [[http://anderslovesmaria.reneengstrom.com/2008/08/04/182-go-wrong This strip]] of ''Webcomic/AndersLovesMaria''.
* This ''Webcomic/KevinAndKell'' [[http://www.kevinandkell.com/1997/kk1013.html strip.]]
* ''WebComic/EightBitTheater'' seems like it's on the brink of [[http://www.nuklearpower.com/2009/07/02/episode-1147-the-big-plan/ invoking this trope]]:
-->'''Red Mage:''' And now that I've described the plan in full, [[TemptingFate nothing can possibly go wrong]].
** There's also [[http://www.nuklearpower.com/2006/06/03/episode-703-what-could-go-wrong/ Episode 703: What Could Go Wrong?]], which indulges in some heavy TemptingFate.
* Frequently invoked in ''Narbonic'', particularly [[http://www.webcomicsnation.com/shaenongarrity/narbonic_plus/series.php?view=archive&chapter=42439 here]] (the bottom comic).
* The bunny - [[http://www.scarygoround.com/sgr/ar.php?date=20080314 Oh God the Bunny]].
* In ''Webcomic/ElGoonishShive'', one strip is titled "[[http://www.egscomics.com/?date=2004-11-15 Surely Nothing Bad Can Come from This]]"
* In ''Webcomic/MonsterOfTheWeek'' strip ''[[http://www.shaenon.com/monsteroftheweek/2014/02/28/02282014/ Tunguska]]'' Mulder forgets that he's in TV show and asks Scully what could go wrong. Well... he's in Russia. With [[WildCard Krycek]]. Seconds later, they're attacked by angry Russians on horses and captured.
* Said word-for-word by Dora in [[http://www.questionablecontent.net/view.php?comic=1603 this]] ''Webcomic/QuestionableContent'' strip, referring to hanging pictures while drunk. By the next strip, [[AmusingInjuries the inevitable has happened.]]
* Said several times in ''Webcomic/SchlockMercenary'', and ''started'' many more, but the speakers were [[GenreSavvy cut off by someone else]].
--> '''Ventura''' : Oh come on what's the wor...
--> '''Kevyn''' : You have ''not'' worked here long enough to be allowed to finish that sentence.
** Or this [[http://www.schlockmercenary.com/2008-05-01 classic]] :
---> '''Thurl''' : It'll be a perfect, low risk shakedown tour. I've run a cost-benefit analysis, and it remains profitable even in extreme contigencies.
---> '''Tagon''' : Did you weasel-word your way around saying "What's the worst that can happen?"
---> '''Thurl''' : Hey, '''you''' just now invoked Murphy, not me. Those weasel-words are there for our '''protection'''.
* ''Webcomic/StandStillStaySilent'': [[http://sssscomic.com/comic.php?page=191 Well, harder than you think]].
* Elevated to the point of a RunningGag in ''Webcomic/BobAndGeorge''.
* A [[http://www.xkcd.com/292/ classic XKCD]] takes this into SpaceWhaleAesop territory.
* There's a magical girl in ''Webcomic/ToPreventWorldPeace'' who actually [[http://worldpeace.emilymarthasorensen.com/worldpeace281.html uses this as an attack phrase.]]
* ''Webcomic/{{Freefall}}'' gives us our page image. It also shows that Varroa has less sense than ''Sam''.

[[folder:Web Original]]
* ''LetsPlay/DeceasedCrab'' likes this trope a lot as he often says "What's the worst thing that could happen? Please don't answer that." Since he has played every game that he [=LPs=] before, things often do go wrong afterwards.
* Rebecca from ''WebVideo/DemoReel'' says this right before things start going diabolusly wrong. As an actress who has produced her own one-woman shows, she really should have known better.
* The two Michaels in ''WebVideo/DoomsdayArcade'' often, in early episodes, come up with ideas, complete with ImagineSpot, and say [[TemptingFate "I see no other possible outcome"]]. Naturally, none of these plans work at all, which leads to their eventual observation that they should really stop saying that.
* Common scenario of [[LetsPlay/GeminiLaser GeminiLaser's]] Blooper and Tricks videos. But [[http://youtu.be/GCDL-6jflGg?t=2m17s this one]] takes the cake.
* ''Literature/RaisingAngels'': The author literally invokes this trope in the story's tagline.
* ''Literature/WhateleyUniverse'': Phase said it in an early chapter of ''Ayla and the Birthday Brawl''. Readers know what Phase doesn't: an internationally feared {{supervillain}}s with a major grudge against Team Kimba was told about Ayla's planned party, and has a week to plot something ''really'' nasty.
** Phase probably knows just what's going to go wrong, seeing as it's happened on both of his previous trips... and has had everyone else telling him exactly just ''that'' for a few episodes. In consideration of this, he's managed to invite - in a relatively roundabout way - enough students with oddball and incredible powers, alongside an ex-Admiral with a nanite swarm guiding her every move. [[TemptingFate Obviously, this means that he's prepared for nearly every eventuality.]]
* In ''Franchise/{{Noob}}'', the secret that got revealed in the franchise-wide WhamEpisode must have been in this situation prior to being uncovered. On one side, the creator of the game was [[spoiler:getting his star player's gaming avatar illegally boosted as a marketing ploy to make him an unattainable goal for other players, without said star player's knowledge]]; in other words, a situation that would be quite bad for him if it ever got discovered. On the other hand, a hacker who wants to drive people off the MMORPG in which the story is set is known to be regularly breaking into the game's system. It was totally not a matter of time before the secret would become public.
* Used sarcastically in the ''PC Gamer'' Saturday Crapshoot article written by Richard Cobbett on the ''VideoGame/LeisureSuitLarry'' wannabe ''Les Manley: Lost in LA''.
-->'''Cobbett:''' Normally, a sequel is the game that takes the good bits of the original and makes the most of them. Since Search for THE KING had no good bits, Lost in LA was in trouble. Its solution? Grab a camera, hire some bikini girls, and hope like hell that sexism would sell. What could ''possibly'' go wrong?

[[folder:Western Animation]]
* ''WesternAnimation/TheFairlyOddParents'':
** When Timmy gets his daily life turned into a reality TV show, ExecutiveMeddling forces him to adopt the trope title as his {{Catchphrase}}. Then, when Timmy invokes the phrase while referring to his mom's cooking, [[GenreSavvy she thinks Timmy is insulting her and promptly grounds him.]] In turn, Timmy's mom ends up getting replaced by Florence Henderson.
** Most of the time it's played straight, however. That became his catch phrase because he actually ''does'' say the trope title often. It's almost a OncePerEpisode thing for Timmy. It's used so often that when things inevitably go bad when Timmy wishes to be in an old cartoon, Cosmo complains that no one had a chance to say what could possibly go wrong yet.
* This is literally the title of the pilot (and only) episode of the cartoon based on ''WesternAnimation/{{Bubsy}}''. It's also his catchphrase during said show.
* This becomes Spanky Ham's catchphrase on ''WesternAnimation/DrawnTogether''.
* In the ''WesternAnimation/HeyArnold'' episode "Curly's Girl", Rhonda plans to wear her mother's birthday present mink coat, thinking nothing can go wrong. Surprise, she gets a candy apple stuck on the white coat, leaving a big red stain. This sets up Rhonda's problems for the rest of the episode, when Curly uses her predicament to blackmail her into pretending to be his girlfriend.
--> '''Rhonda:''' I can't believe this! My mother's mink!
* ''WesternAnimation/Ben10Omniverse'' has an episode with Ben in an alternate universe. His counterpart says the phrase. Ben, being GenreSavvy, expects it to be bad, but nothing happens ''because they're in another universe'' and apparently, in that universe the phrase isn't associated with bad things happening.
* In the ''WesternAnimation/SouthPark'' episode "Free Hat", the boys form a club to save movies from their directors. When they get an appearance on ''Nightline'', Cartman says he will speak because he's the spokesman. When Kyle tells him not to screw up, he says the trope. Besides immediately relinquishing the job to Tweek when Ted Koppel asks why they advocate toddler murder (ItMakesSenseInContext), the appearance also gives Creator/StevenSpielberg the idea to remake ''Film/RaidersOfTheLostArk''.
* ''WesternAnimation/RegularShow'' has quite a few examples, especially ''Appreciation Day'', which has a manager's book in which only the truth can be written. Rigby and Mordecai write tall tales in it.
* In the ''WesternAnimation/{{Duckman}}'' episode "Clear and Presidente Danger", Duckman begins wondering out-loud about becoming the new leader of the third-world country Porto Guano and ends with "What Could Possibly go Wrong?" Cornfed [[BreakingTheFourthWall breaks the fourth wall]] to say to the audience "For a complete list, please send $12 to Journal Graphics, Washington, DC, 20300."
* The basis of virtually every mission the Vulture Squadron encounters on ''WesternAnimation/DastardlyAndMuttleyInTheirFlyingMachines''.
* ''WesternAnimation/LooneyTunes'': Wile E. Coyote usually asks a variation on the theme, shortly thereafter finding out [[AmusingInjuries exactly what can go wrong]].
* In the famous "Itchy & Scratchy Land" episode of ''WesternAnimation/TheSimpsons'', the family is taking a helicopter into the park when the pilot comes over the PA: "Welcome to Itchy & Scratchy Land, where nothing can possibligh go wrong. ...Possi''bly'' go wrong. That's...the first thing that's ever gone wrong." Most of the rest of the episode is an homage to ''Film/{{Westworld}}'', featuring murderous Itchy and Scratchy robots malfunctioning and trying to kill everyone.
* In ''WesternAnimation/RobotChicken'''s Franchise/StarWars special, a segment focuses on Palpatine having a very bad day as he first arrives on the second Death Star, culminating in the air conditioning duct over his chair breaking and blasting him continuously with frigid air. He turns to his red-robed guard and says
-->'''Palpatine:''' Wanna see me tempt fate? "Could this day possibly get any worse?" I did it ironically, so I think we're okay.
** Cut to Darth Vader throwing him into the reactor shaft.
* At the end of the ''WesternAnimation/AvatarTheLastAirbender'' episode "The Earth King" the usually GenreSavvy Sokka says "Come on. What could possibly go wrong?". [[spoiler:Cue cuts to different plot revealing ways it will, by Ba Sing Se being taken over by [[MagnificentBastard Azula]] and the Fire Nation.]]

[[folder:Real Life]]
* The Titanic was called "the unsinkable ship"
* Let's simulate a power blackout in our nuclear power plant to field-test the new emergency cooling system we installed. Oh, but wait, that's not enough - we also need to disable all the safety precautions, and then end the experiment with an emergency measure that was never meant to be used routinely. Oh, and do it with the less-well-trained night shift. And did we mention that the designer of our plant had never designed a nuclear reactor before in his life? [[http://en.wikipedia.org/wiki/Chernobyl_disaster What could possibly go wrong?]]
* [[http://www.cracked.com/article_16583_5-scientific-experiments-most-likely-end-world.html The 5 Scientific Experiments Most Likely to End the World]], courtesy of Website/{{Cracked}}, invokes the trope by name.
** [[http://www.cracked.com/blog/the-7-most-mind-blowing-places-science-has-discovered-life/ This more recent article]] has this for #5 among others, where a life form ''grows'' instead of dying when subjected to extreme gravity:
--> At this point you should be hearing ominous music and people ignoring a lone researcher's desperate warnings.
* A highly-contagious pathogen being tested in a lab in tornado alley. [[http://science.slashdot.org/story/09/07/27/2140218/DHS-Pathogen-Lab-To-Be-Built-In-Tornado-Alley?art_pos=12 Slashdot link]] (note the tag).
* We want the ship to look good on the papers, so punch it and never you mind the icebergs. After all we've got a fancy new doublebottom-hull, we're able to stay afloat with ''four'' compartments flooded instead of the usual two, and we have four ''more'' lifeboats than is legally required! [[http://en.wikipedia.org/wiki/RMS_Titanic What could possibly go wrong?]]
* The "perfectly safe" ''[[UsefulNotes/TheHindenburg Hindenburg]].'' While it seemed safe enough at the time, in hindsight, flying around in a balloon filled with hydrogen is pretty dangerous. To quote Wiki/{{Wikipedia}}, "nowadays helium is preferred because of its lack of flammability." No kidding. Also, while it wasn't precisely painted with rocket fuel, the metallic paint on the thing didn't help in the least.
** Oddly enough, airships ''were'' actually incredibly safe for aircraft of the time - it seems counterintuitive, but the inherent risk of hydrogen gas and early 1900s technology had, until that point, been countered by the inherent safety and stability of the relatively slow ships. With loads of redundant engines and gas cells, they are naturally at home in the sky - they don't come crashing down to earth if a wing or rotor comes off, or an engine fails. The ''Graf Zeppelin'' in particular proved perfectly reliable during circumnavigations, polar expeditions and a million transatlantic miles. This is why people trusted the German Zeppelin brand in particular- the Zeppelin company had a perfect passenger safety record since the aircraft was invented nearly forty years prior to the disaster, making the ''[[UsefulNotes/TheHindenburg Hindenburg]]'' the first and last passenger Zeppelin to come to a fatal end.
** It didn't help things that Hitler was already looking somewhat AxCrazy round the time that ''Hindenburg'' was being built. Had he not torqued off the United States enough to have them embargo helium (of which they had the biggest supply at the time), the disaster could have been avoided.
* There was once an airship called the R-101. Devised as a part of the British "Imperial Airship Scheme," the contract pitted two competing designs against one another: the exemplary Vickers-built R-100, and the government-built R-101. The materials, design, and capabilities of the R-101 were woefully inadequate in comparison to the R-100, to the point where the airship had to be lengthened so that it would have enough lift to fly, making it the largest airship in the world. More consideration was given to the incredibly spacious, opulent (and heavy) interior than to airworthiness. Eager to get a lead on its rival, the government pulled strings to have flight and safety testing rushed through or neglected so that it could make a maiden voyage to India. Despite being warned of a vicious storm ahead, the captain [[WhatAnIdiot decided to plunge straight into it.]] The R-101 [[CaptainObvious never made it to India.]] She was damaged by the storm and crashed into the ground, where her hydrogen exploded in a massive fireball that took the lives of all but eight of the people aboard.
* The ''guaranteed big seller'' [[TheAllegedCar Ford Edsel]].
* The superb [[https://en.wikipedia.org/wiki/Aston_Martin_Lagonda Aston Martin Lagonda]] from [[TheSeventies the mid-1970s]]. A spaceship on wheels, teeming with Space Age electronics, coming from a company reputed until then for the exact opposite, technological conservatism and manual labour. Everyone seemed to think multiple [=CRT=] color screens, renowned for decades for being power-hungry and hot, [[SarcasmMode fit nowhere better than in the cramped spaces beneath a car's dashboard]].
* The ''New'' Coke. Let's radically change the recipe for our much-loved flagship soft drink, keep the same name, and take the old one off the shelves. Now, according to [[Wiki/{{Wikipedia}} The Other Wiki]], Coke did do their best to prepare for it, and it actually was well-liked. The real problem was a subtler one of a VocalMinority gradually convincing people it was bad. If true, that speaks volumes.
** This almost gets into IdiotHero territory, since the crazed backlash against New Coke put Coke Classic back on top of the sales charts. Some people think that was their [[UsefulNotes/ConspiracyTheories plan all along.]] Another, less [[GambitRoulette roule]][[BuffySpeak tty]] theory is that they did this to switch from sugar to far cheaper high fructose corn syrup; a change they retained, and still do, with Coca Cola Classic. [[note]]No, most of the traditionalists that so loudly protested New Coke didn't notice this.[[/note]]
** In 2011, Coca-Cola's did it again: Let's release a holiday version of Coke Classic in white cans (the color of Diet Coke cans) and hope nobody gets confused. It didn't go over well, and Coca-Cola has [[http://www.delish.com/food/recalls-reviews/white-holiday-coke-cans-replaced-due-to-consumer-outrage since released the holiday version in red.]]
** In a perhaps slightly more subdued example, Coke switched from an easy-to-grip ridged cap to one that is themed as a bottle cap, but completely smooth. [[WesternAnimation/TwoStupidDogs Cute, but wrong.]] They have since adopted some sort of hybrid.
* Creator/TheHistoryChannel's ''Series/ModernMarvels'' series does a sub series titled "Engineering Disasters" every now and again. Every one of them seems to invoke What Could Possibly Go Wrong at least once per episode. They've produced 21 hour long episodes and still haven't covered everything. Creator/NationalGeographicChannel has ''Series/SecondsFromDisaster'' which is the same thing.
* Subverted by an experimental reactor in Switzerland. While the guy in charge had a "What Could Possibly Go Wrong" attitude, the engineers considered this phrase a serious question, and [[ProperlyParanoid built the reactor in a cave just in case they got an answer.]] Naturally, they got an answer, and [[LetUsNeverSpeakOfThisAgain sealed up the cave]].
* [[http://www.nytimes.com/2012/01/23/opinion/keller-bomb-bomb-bomb-bomb-bomb-iran.html?_r=1 This article]] about a possible war against Iran is ExactlyWhatItSaysOnTheTin.
* The "Big Dig" in UsefulNotes/{{Boston}}. "Let's replace the unsightly and congested Central Artery expressway with an underground tunnel! Then, let's reclaim the land where the old highway used to be, building parks, gentrifying the slums that developed around the highways, and de-congesting surface traffic! What Could Possibly Go Wrong?" Two decades, $15 billion, several lawsuits and four deaths later...
* Music/TheRollingStones hired [[BadassBiker Hells Angels]] to work security at the [[https://en.wikipedia.org/wiki/Altamont_Free_Concert Altamont Free Concert]] and paid them in beer. At least one audience member wound up dead.
* It's the dawn of the jumbo-jet era, and [[http://en.wikipedia.org/wiki/McDonnell_Douglas McDonnell Douglas']] rival [[http://en.wikipedia.org/wiki/Boeing Boeing]] has just released a massive four-engined marvel, the 747. What, it's too big for many airports? Ah, we have [[http://en.wikipedia.org/wiki/McDonnell_Douglas_DC-10 a slightly smaller tri-jet]] almost finished! Let's get it on the market, there's a niche for us. What? The cargo door blew open during the pressurization test? The locking mechanism is prone to failure? Ah, never mind. It's extremely unlikely to happen in flight, besides, it's not likely to do a serious harm to a big airliner, right? ...What? The cargo door did blow open in mid-flight, the severed floor damaged the flight controls and a crash was barely avoided due to piloting skills and some sheer luck? Oh. We can't redesign the door locking system, we'd have to pull all the planes off the market and admit there is a serious flaw. Think about the contracts we can lose! Let's add a small window to allow the ground crew to check if the doors are properly locked, and a small plate with instructions in English (all the ground crews all over the world speak English, right?) on how to check it. [[http://en.wikipedia.org/wiki/Turkish_Airlines_Flight_981 What could possibly go wrong?]]
* Considering how crucial the proper maintenance and repairs of an airliner are, it's no surprise that the manufacturers give the operators a detailed repair manuals on how to do it properly. Still, many operators devise their own procedures, with predictable results.
** The removal of an engine from the wing for maintenance requires removing the engine first and then the engine pylon? It's too time- and money-consuming. Let's get a simple forklift and remove it altogether.
** The pilots landed with the nose raised too much and scraped the tail? The book says we have to cut the damaged section and put a doubler plate much bigger that the one we just removed? Aww, who cares. Let's simply polish the damaged part and use a plate big enough just to cover the damaged section. Or: let's do it by the book, but use two smaller doubler plates instead of one.
** The jackscrew responsible for moving the elevators needs to be frequently lubricated? The lubrication must take four hours to complete? Let's do this less often, and for one hour instead of four.
** The inertial navigation system goes berserk? It's too expensive to be replaced. Maybe it's failing because the connections got dirty? Just clean them. Does not work? Well, then swap it between different airliners.\\
So simple, so clever, so time- and money-saving. [[http://en.wikipedia.org/wiki/American_Airlines_Flight_191 What]] [[http://en.wikipedia.org/wiki/China_Airlines_Flight_611 could]] ''[[http://en.wikipedia.org/wiki/Japan_Airlines_Flight_123 possibly]]'' [[http://en.wikipedia.org/wiki/Alaska_Airlines_Flight_261 go]] [[http://en.wikipedia.org/wiki/Adam_Air_Flight_574 wrong?]]
*** Despite the relative rarity of accidents per passenger mile, the Airline Industry is justifiably hammered for its tendency to be ''laissez faire'' with safety regulations. Part of the reason? The de-regulation of the airline industry, which placed more load on the airlines with cheaper fares, more planes and overworked ground crews which are difficult to staff due to the extensive training needed to become a qualified aircraft mechanic.
* The pilot is a WWII [[AcePilot fighter ace]] and co-pilot is a WWII reconnaissance pilot, so they both are very skilled flyers. Oh, they have spent the previous evening in a night club - hey, this is Finland and little drink cannot do any harm, and after all they are war veterans and used to sleepless nights. The weather is bad, so let's fly a little lower than what the air traffic control allows. Oh, and the flight is a bit late, so let's make a little bit tighter landing pattern on that DC-3. [[https://en.wikipedia.org/wiki/Aero_Flight_311 What could possibly go wrong?]]
* When buying insurance, reading the fine print will often be a list of things that can possibly go wrong.
* Vice-Admiral Vernon's attack on Cartagena de Indias in 1741. The British had 30,000 men and 186 ships. Cartagena's walls, while impressive, were manned by only 4,000 men and 6 ships, and reinforcements weren't expected. Vernon was so confident in his victory that he wrote back home claiming to have seized the city before fighting was over. [[http://en.wikipedia.org/wiki/Battle_of_Cartagena_de_Indias What Could Possibly Go Wrong?]] For one, how about the enemy ships use chain balls to destroy your ships' sails and render them useless instead of engaging in normal naval combat? What if the enemy digs trenches on the base of the walls and the ladders you brought suddenly turn out to be too short to climb them, and your men only realize this when they are at the walls and [[OhCrap can't cover themselves from enemy fire]]? After a while, the British fleet found itself sitting in the bay bellow until the tropical storms and diseases convinced it to go home, leaving nearly 12,000 dead and 50 ships lost behind. We can only imagine George II's face when he was told that the victory he had been celebrating for one month and for which he had forged a couple of [[http://en.wikipedia.org/wiki/Battle_of_Cartagena_de_Indias#British_withdrawal commemorative medals]] was actually ''the biggest defeat in the Royal Navy's history up to that point.''
* Murphy's Law is an adage that explains why saying this sort of thing is a bad idea. Basically, it says that "If something can go wrong, it probably will."
** Although the above is now the most-used version, there are variations such as "when nothing can possibly go wrong, it will" and the original version was a warning to aircraft mechanics that "if a part can be installed wrongly, it will be installed wrongly by someone, some time".
* Let's release two dozen rabbits to, well, breed like rabbits in the Australian wild. It "could do little harm and might provide a touch of home, in addition to a spot of hunting." [[http://en.wikipedia.org/wiki/Rabbits_in_Australia What could possibly go wrong?]]
** Similarly, cane toads.
* [[http://en.wikipedia.org/wiki/2011_Norway_attacks July 22, 2011]]: Let`s reduce the number of Norwegian rural police offices for efficiency, and then see to it that everyone adheres to a chain of command without questioning. Then see to that the number of sufficient boats at Tyrifjorden is less than adequate, because nothing ever happens there. Let`s also plainly forget the crucial note with a certain car registration on a desk, and then see to it that not a single policeman actually knows where a certain massacre happens. What Could Possibly Go Wrong?
** Also: When a certain young man tries to purchase a farm, let him have it, although the former owner clearly warns the officials against him...
* So you're the captain of a ship that has been sailing in heavy fog for several hours which has just entered a heavily-used shipping corridor, and the radar is detecting another ship is headed in your direction. You could turn the ship to starboard like every captain is trained to do in that situation...alternatively you could decide that you know better than every other captain and turn to port, expecting plaudits from the radar operator on the other ship when they see your quite brilliant piece of seamanship. [[http://en.wikipedia.org/wiki/SS_Andrea_Doria What could possibly go wrong?]]
* I'm sure that those 294 flood defence schemes across the UK [[http://en.wikipedia.org/wiki/United_Kingdom_government_austerity_programme don't need their funding]]. [[http://en.wikipedia.org/wiki/2012_Great_Britain_and_Ireland_floods What could possibly go wrong?]]
* What's that? There was a loud bang from the ship's bow doors? Oh, let's just keep on going, [[https://en.wikipedia.org/wiki/MS_Estonia#Sinking how bad could it possibly be?]]
* Your [[UsefulNotes/NewOrleans low lying city]] is surrounded by water on three sides and has a coast to the one body of water where most of the hurricanes in the world originate? Well, why would you have to spend money on dams and levies? What could possibly go wrong?
* Sure, let's put streetcar tires under a [[UsefulNotes/HighSpeedRail high speed train]] after we previously skimped on decent suspension, so the whole train vibrates and the plates in the restaurant car start moving around. For that matter, let's put a switch right before a bridge on a high speed line. And when a streetcar operator using the same tires as we do warns they break earlier than expected? Well, this can be handled by whoever got or didn't get the memo. Oh and when the results of routine checks are so off there ''has to be'' something wrong? Well obviously it's the test that's wrong. Nothing to see here, carry on. And if you are a passenger on a train for god's sake, don't ''ever'' pull the emergency break. Even if a piece of metal (turns out it was the rest of a wheel) pokes through the floor where you sit. Better search a conductor and ask for permission first. This is Germany, after all. [[https://en.wikipedia.org/wiki/Eschede_train_disaster What could possibly go wrong?]]
* It's 1999. {{Seattle}} is a hip, up and coming city with a thriving port for international trade, a large tech sector, and aerospace companies. However, it's still a small city compared to New York, Los Angeles, or San Francisco with a relatively small police department and emergency services who haven't been trained for large gatherings. [[TheMaze The streets and traffic are a notorious mess]], but so are a lot of places. Oh, and it's known for being liberal, and those workers' rights guys, hippie environmentalists, lazy union guys, and religious nuts are just silly complainers. It can't be ''too'' much of a big deal. [[https://en.wikipedia.org/wiki/1999_Seattle_WTO_protests Queue the World Trade Organization meeting]], 50,000 protesters, and a ''week's worth'' of trouble for the city that eventually ended with the mayor and chief of police being forced to resign.
* During the air show, let's make the pierced heart formation. We only need to have two group who make the heart shape with a solo that goes really near them straight to the crowd, but extremely close to the crowd. Except the fact that [[Music/{{Rammstein}} a metal band could use the name of the air base where was the show and accidentally double the letter 'M',]] [[https://en.m.wikipedia.org/wiki/Ramstein_air_show_disaster what could go wrong?]]