-> "Government cover-ups were [[NotInMyContract not in my job description]]!"
-->-- '''HECU Marine''', ''[[VideoGame/HalfLife1 Half-Life: Opposing Force]]''

When two or more people team up to achieve a goal, it's generally assumed that their goals are reasonably similar. At the very least, what one of them wants to achieve shouldn't conflict with what the others want to achieve. Otherwise, why would they team up?

Because ''they didn't know'' what their teammates are after.

Maybe someone lied to them, or maybe they just never discussed the plan in enough detail to know their allies' true goals. Then again, they may have started with the same general goal and one (or more) of the teammates has [[JumpingOffTheSlipperySlope slipped]] in their ethical standards and is willing to [[UtopiaJustifiesTheMeans cross any lines]] to achieve it. In any case, it's only when their long, elaborate plan is nearing completion that they finally discover what they've been working toward all this time (and how they mean to finally get it). Their reaction is inevitably, "Whoa, I didn't sign on for ''that!''"

Compare MistreatmentInducedBetrayal and RightHandVersusLeftHand. May lead to an EnemyCivilWar. EvenEvilHasStandards can be a cause. May overlap with NotInMyContract if specific agreements are [[BotheringByTheBook invoked]] [[ExactWords in detail]] to justify breaking off the agreement.

See also YoureInsane
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!!Examples:

[[foldercontrol]]

[[folder:Anime and Manga]]
* In ''DragonBall'', Adjutant Black, the right hand man of Commander Red of the Red Ribbon Army, believed that his commander was after the wish-granting Dragon Balls in order to conquer the world. However, when he learns that the commander intended to make himself taller using the wish, and that he was willing to throw away all of his men's lives for his selfish wish, Black promptly shoots him dead.
* A comedic example in ''OnePiece''. [[spoiler:Trafalgar Law allied the Heart Pirates with the Straw Hat Pirates in hopes of getting a powerful ally to take down the operation at Punk Hazard and eventually one of the Yonko. He did. What he did not sign on for was the Straw Hats' various... quirks]].
** On a more serious note, he also quit working for [[spoiler:Caesar Clown]] on the spot after he found out about how [[spoiler:Clown was drugging the children of Punk Hazard with a highly addictive stimulant that dramatically reduced their lifespan in order to keep them from trying to rebel or leave]]. His reaction was more or less along the lines of "if I had known about this beforehand, I never would have had anything to do with you in the first place.", and it served as a perfect example of just how far beyond the pale [[spoiler:Clown]] had gone.
[[/folder]]

[[folder:Comics]]
* In MarvelComics' ''ComicBook/AgeOfApocalypse'', Sabretooth is an X-Man. In his backstory, he revolted when he learned that Apocalypse hired him for a much more lethal plan than he had realized, and he regards this as [[TheAtoner atonement]].
* In [[ComicBook/RobinSeries Robin's own comic]], a teleporting supervillain named Dodge put together a team of fellow bad guys to [[MinorInjuryOverreaction avenge himself on Robin]]. He was doing well right up until he found The Cheater electrocuting Robin, at which point it was revealed that while (almost) all his minions were in it for murder, the leader himself was way out of his depth -- he just wanted to humiliate his enemy. Then they decided that a teleporter was far too useful to allow to quit.
* In ''ArchieComicsSonicTheHedgehog'' "Mobius: 30 Years Later" storyline, the [[SecretPolice Dark Presence]] frees [[KnightTemplar King Shadow]] in order to restore him to the throne. When they find out that Shadow is planning to KillEmAll, they flee, even quoting the trope name.
[[/folder]]

[[folder:Film]]
* Many ''Film/JamesBond'' films have a scene where the BigBad meets his fellow villains to discuss their nefarious plans, and one of them realizes the scheme is far more drastic than he had thought ("You want to blow up Silicon Valley?!") He'll pull out, saying that he can't go along with something like that - and will promptly be ThrownFromTheZeppelin so he can't tell anyone else.
* In ''Film/TheRocketeer'', gangster Eddie Valentine enthusiastically assists criminal mastermind Neville Sinclair in the latter's attempt to steal the rocket pack... Until he finds out that Sinclair is planning on handing the thing over to the Nazis rather than use it to pull bigger crimes. As Valentine says, "I may not make an honest buck, but I'm 100% American..."
* In ''Film/TheRock'', Ed Harris' character has no intention of actually going through with his threatened chemical attack if his demands aren't met. He finds out at the end that his associates feel differently.
** More specifically, they felt that there was no going back -- when his bluff is called, he folds but they decide to stay all in.
* One of Xander Drax's underlings in ''Film/ThePhantom'' is uncomfortable with the idea of obtaining power through occult means. He's ''speared in the back'' for his trouble.
* A variation in the first ''Film/MissionImpossible'' movie: Ethan gives the top-secret N.O.C. list to Luther ''because'' it's not what Luther signed up for, so he knows he won't try to steal it for his own hands.
* In Creator/JamesCameron's ''Film/{{Avatar}}'', ActionGirl [[PrivateMilitaryContractors mercenary]] pilot Trudi refuses to take part in the destruction of the Na'vi home and ultimately turns against Colonel Quaritch, saying "Screw this. I didn't sign up for this shit!"
* In ''Film/TheMuppetMovie'', Max warns Kermit that Doc Hopper is trying to kill him.
* Used almost verbatim in ''[[Film/TheBourneSeries The Bourne Ultimatum]]'' by Pam Landy.
* In ''Film/TheEmpireStrikesBack'', Lando Calrissian.
-->'''Darth Vader:''' Calrissian, take the Princess and the wookiee to my ship.\\
'''Lando:''' But you said they'd be left here under my supervision!\\
'''Darth Vader:''' [[ILied I am altering the deal.]] [[MemeticMutation Pray I do not alter it any further.]]
* In ''Film/MadMaxBeyondThunderdome'', Max says this after seeing Blaster's true face and refuses to kill him.
* In ''Film/TheDarkKnight'', the officer riding shotgun in the prison transport during the car chase shouts "I didn't sign up for this!" when the Joker takes out the police car in front of the transport with a rocket launcher.
* In ''Film/ThePrincessBride'', Inigo and Fezzik are dismayed to learn Vizzini's plan involves killing Buttercup.
* On a more comedic note, [[DumbMuscle Zangief from]] ''Film/StreetFighter'' bought into Bison's aspirations hook, line, and sinker. It takes Dee-Jay telling him outright that "''We're'' the bad guys!" to get Zangief to pull a HeelFaceTurn.
* In ''Film/XMenOriginsWolverine'', Wolverine is ''not'' too enthusiastic about massacring a village full of civilians.
[[/folder]]

[[folder:Literature]]
* In the ''Literature/{{Discworld}}'' novel ''Discworld/{{Hogfather}}'', Mr. Teatime hires several {{Mooks}} to help him kill the Hogfather (Discworld's version of Santa Claus). It's not until near the end of the book that Teatime reveals that this is what all their elaborate plans were for. One of the {{Mooks}}, despite being a thug and murderer, does not take kindly to the idea of eliminating their universe's version of Christmas and turns on Mr. Teatime.
** Even before that, there was grumbling: "He ain't just after money, you know." "Yeah, well, I didn't sign up for world domination. That kind of stuff gets you into trouble."
* In ''Literature/RainbowSix'', the ex-KGB agent hired by the StrawmanPolitical environmentalists to provoke terrorist attacks does a HeelFaceTurn after discovering that their ultimate goal is killing off most of humanity.
* In ''The Ear, the Eye and the Arm," the She-Elephant feels this way after learning the Masks are intending to kill the Matsika children, as opposed to simply indoctrinating them into their gang.
* As revealed in ''Literature/HarryPotterAndTheDeathlyHallows'', [[spoiler:Regulus Black]] pulled a HeelFaceTurn when he discovered Voldemort's plans. Subjugating Muggles and mudbloods was fine. [[spoiler:Tearing apart one's own soul in a bid for immortality?]] Not so much.
** That could also have something to do with Voldemort's treatment of [[EvenEvilHasLovedOnes Kreacher]].
*** In ''Order of the Phoenix'', Sirius mentions that there were a number of Old Name families like his own who initially thought that Voldemort had the right idea, but then quickly changed their minds about him when they saw how far he was willing to go for Pureblood Supremacy.
** Mundungus Fletcher does one of these as well, except he really never ''did'' sign on to die for Harry, as he tells him.
** The Malfoys seem to have some major regrets about joining up with Voldemort by the final book, to the point where Draco [[spoiler:refuses to firmly say whether it's really Harry or not when he's captured by the Death Eaters]] and Narcissa and Lucius [[spoiler:lie and tell Voldemort Harry is dead, and then refuse to fight in the subsequent fracas because they know it means they will be reunited with their son.]]
** A rare non-heroic example: Gilderoy Lockhart joined up to the Defense of the Dark Arts teaching profession at Hogwarts. However, when he discovered that a girl was kidnapped. He attempted to flee, and implies that he's doing so because "saving students was not part of the job description." It's all the more unheroic because it WAS his job as a teacher at Hogwarts to protect the students, especially as the combat specialist.
[[/folder]]

[[folder:Live Action TV]]
* In ''{{Lost}}'', after witnessing why Keamy's mercenary team was ''really'' sent to the Island, their fellow freighter passenger Miles almost quotes the trope name verbatim.
* In ''{{Smallville}}'''s [[{{Webisode}} Vengeance Chronicles]] [[ActionGirl Andrea Rojas]] teams with [[MindManipulation Molly Griggs]] and [[ShockAndAwe Nick Yang]]. She realized that their plan to stop Level 33.1 was to have Molly send Lex a [[PsychicAssistedSuicide hypnotic message to kill himself]] rather than expose the project. Since ThouShallNotKill (although she must have adopted this philosophy after "Vengeance"}, she invokes the trope.
* ''Series/GeneralHospital'': During the 2005 storyline in which A.J. kidnapped Sonny's children as part of his latest scheme to get Michael back, his father Alan is sympathetic and initially tries to help him, only to turn his back on him when he realizes just how far A.J. is willing to go to get his way. In turn, A.J. shoots him in the back and leaves him wheelchair-bound.
[[/folder]]

[[folder:Video Games]]
* After the Resonance Cascade in ''VideoGame/HalfLife1'', a special forces group of the [[YanksWithTanks United States military]] (the Hazardous Environment Containment Unit) arrives to clean up the situation--not only by stopping the Xen invasion, but by "silencing" all Black Mesa personnel with lethal force in order to keep knowledge of the incident secret. While some of the soldiers are sociopathic and most carry out their orders without complaint, one Marine in "On A Rail" makes it clear killing civilians is ''not'' what he signed on for.
-->"I didn't sign on for this shit! Monsters sure, but civilians? ...Who ordered this operation anyway?"
** There's more soldiers in ''Half-Life: Opposing Force'' who are clearly not happy with what they've been ordered to do.
* In the third ''SpyroTheDragon'' game, the Sorceress and her apprentice Bianca steal dragon eggs and take them to their Forgotten Worlds. Bianca does it because the magic in their worlds is disappearing without the presence of dragons to maintain it. When she discovers the Sorceress' real reason for wanting the eggs--[[spoiler:to make an immortality potion from baby dragon wings]]--she promptly does a HeelFaceTurn and joins Spyro and his friends in trying to stop her.
* ''DevilMayCry 4'': Shows up in the newly {{Heel Face Turn}}ed and [[RedemptionEqualsDeath shortly dead]] [[spoiler:Credo]]'s MotiveRant:
--> "I served [[UtopiaJustifiesTheMeans the dream of a world you spoke of, the Savior you preached of]]... But you [[spoiler:used my sister, Kyrie, who has '''nothing''' to do with this]], and [[ThisIsUnforgivable that is beyond forgiveness.]]"
* Kazuhira Miller in ''VideoGame/MetalGearSolidPeaceWalker'' worked with Cipher as a neutral business partner and have Big Boss rejoin the organization with the intention of expanding the Militaires Sans Frontieres. After it became apparent that Cipher was perfectly willing to ruin the Militaires Sans Frontieres should Big Boss refuse to rejoin by having one of their agents launch a nuclear weapon from their defense system at the East Coast of the United States and then frame Militaires Sans Frontieres, it is heavily implied that Miller quit working with Cipher.
** Huey says this, word for word, when he learned that Coldman was going to launch a live nuke from Peace Walker as the final part of its test.
** How could we forget Otacon in ''VideoGame/MetalGearSolid''? He helped build Metal Gear REX without any idea that it was gonna be used for nuclear assaults.
-->''[[{{Hiimdaisy}} Rex launching nuclear missiles? That's not what it was designed for! Nooooooooo.....]]''
** Also, in ''VideoGame/MetalGearSolid2'', President James Johnson defected from the Patriots to Solidus's Sons of Liberty group and hijack Arsenal Gear. However, whereas he himself wanted to use it as a bargaining chip to be put in the inner circle of the Patriots, Solidus himself desired to use it to actually destroy the Patriots. When Johnson discovered this, he was implied to have refused to cooperate any further, only for it to be too late.
* In the Ork campaign of ''TabletopGame/{{Warhammer 40000}}: DawnOfWar II: Retribution'', Mister Nailbrain says it if attacked in close combat.
* This is Elle Cutleaf's reason for helping you against her Blackwold brethren early in the Combe segment of the Race of Man storyline in ''VideoGame/TheLordOfTheRingsOnline''. The Blackwolds were originally petty brigands until their leader Skunkwood made a deal with the forces of Angmar, a greater evil than Elle was willing to have any kind of part of. Among other things, they took several dogs that Elle had supplied them with and bred them with monstrous Wargs, which did not sit well with her at all.
* In {{Wizard101}} when the player is retrieving the pieces of the stone of Mazzaroth, the final piece is held by Vesna Shadowscar. Upon the player arriving she refuses to fight the player and tells the Shadow Weavers that fighting wizards was not part of the bargain. [[GenreSavvy She'd heard of the player before.]] This may explain why she's one of only human besides the player that is still alive in [[AfterTheEnd Dragonspyre]].
* Late in ''ModernWarfare3'', Yuri explains that [[spoiler:the reason he betrayed Makarov was because he went from a soldier to fanatical lunatic bent on conquering the world for Ultranationalist Russia, willing to use nuclear weapons and massacre civilians to get the insane, mutually-destructive war he wants.]]
* Played for laughs in [[ForScience Relius']] [[FreakyFridayFlip gag reel]] in ''[[VideoGame/BlazBlueContinuumShift BlazBlue: Continuum Shift EXTEND]]''. [[spoiler:This trope sums up Makoto's reaction to Jin dropping into [=NIISAN=] mode about Ragna - in ''her'' body, no less!]]
--> '''[[spoiler:Makoto!Ragna]]''': [[spoiler:Huh? Why's my body standing in front of me, talking about killing me? I didn't sign on for this, you guys!]]
* Regime![[TheFlash Flash]] in ''VideoGame/InjusticeGodsAmongUs'' said these [[spoiler:as he pulled HeelFaceTurn after Regime!Superman crossed the MoralEventHorizon by killing Regime!Shazam for questioning him.]]
-->''This isn't what we signed up for. I let myself believe we were making things better. But we're not.''
* In reference to [[EasterEgg the]] [[EldritchAbomination crazed]] [[ReactionShot Marines]] in the [[VideoGame/HaloCombatEvolved early]] [[VideoGame/{{Halo3}} games]] [[VideoGame/Halo3ODST of]] ''Franchise/{{Halo}}'', Bungie put in one of these troopers in ''VideoGame/HaloReach'' who had been driven mad by the invading Covenant, gibbering that he had signed on to fight Insurrectionists, not aliens.
* Tychus Findlay, in ''VideoGame/StarcraftIIWingsOfLiberty'', protests along these lines when Raynor reveals that they're going to Char to confront Kerrigan. He tries to convince Jim to just take the money and run. [[spoiler:As Gabriel Tosh notes if you still have him there, Tychus is trying to avoid doing something he doesn't want to--that "something" later revealed to be that Tychus has been tasked with ''killing'' Kerrigan, despite the wishes of his friend. Tychus dies on Char, after attempting to shoot Kerrigan--a situation which may or may not have been a case of SuicideByCop.]]
** Tychus also protests quite strongly to facing down an army-strength Tal'darim force on the Xel'naga worldship, backed up by "rip-fields" that tear apart anything that approaches them, with a snarl that he "didn't sign up for no ''suicide mission''".
* ''VideoGame/KingdomHearts3DDreamDropDistance'': Early in the game, [[VideoGame/TheWorldEndsWithYou Neku and Shiki]] both make a deal with [[spoiler: Young Xehanort]] to turn Sora and Riku, respectively, over to him in exchange for being able to leave the Reapers' Game and go home. However, both Neku and Shiki turn on him when [[spoiler: Young Xehanort]] actually attacks them, as he apparently promised them beforehand that he wouldn't hurt Sora and Riku.
[[/folder]]

[[folder:Web Comics]]
* Happens in ''SluggyFreelance'' when [[TheMafiya Mafiya]] boss Noah Zark reveals his plan to [[AnimalWrongsGroup help animals by wiping out humanity]].
-->'''Noah Zark:''' I will use your telecommunications satellites to broadcast my signal all over the vorld! ''Destroying humanity so zat only my beloved animals vill remain!''
-->'''Zoe:''' [[YoureInsane You're mad!]]
-->'''Yuri:''' ''Ve are not mad! Ve just love animals! Ven humanity ees destroyed, only ve vill be left to eat ze tasty animals!'' Boy do ve love eatink tasty animals.
-->'''Noah Zark:''' Ve'll talk later, Yuri.
* The premise of the webcomic ''Watchdogs'' hinges on this trope. An honest man living in a city overrun by crime and vice is sick of living in fear and wants to fight back, Batman-style. He finds a neighbor with similar ideal and access to the necessary gadgets, and they become vigilantes. Soon after, the man finds out that his partner is actually a white supremacist and wants to use their team to attack minorities. When confronted, the neighbor's excuse is ''that he forgot to tell his partner he was racist.''
* ''ManlyGuysDoingManlyThings'': A [[Franchise/{{Bioshock}} Big Daddy]] signs on as a day care worker. He's really, ''really'' good at it. Problem: Nobody told him that at the end of the day, the kids have to go home. [[PapaWolf Trouble ensues.]]
[[/folder]]

[[folder:Web Original]]
* The guys at ''WebVideo/CinemaSins'' must hate it when this line is used by someone who should have expected something like in whatever they signed up for, as they frequently mock when someone uses it. For example, they respond to the example from ''Film/{{Avatar}}'' with "You fly a military helicopter and you didn't sign up for this shit?!" and the one from ''Film/TheDarkKnight'' gets "Really?! ''You are a SWAT officer!!''"
[[/folder]]

[[folder:Western Animation]]
* In ''TheSimpsons'', the founding of Springfield and Shelbyville, as well as the feud between the two towns that followed, is based on this trope. Originally the town founders, Jebediah Springfield and Shelbyville Manhattan were allies who led a group of pioneers in pursuit of new lands to settle. Once they found the site for their settlement, however ...
-->'''Jebediah:''' People, our search is over. On this site we shall build a new town, where we can worship freely, govern justly and grow vast fields of hemp for making ropes and blankets.
-->'''Shelbyville:''' Yes, and [[KissingCousins marry our cousins]].
-->'''Jebediah:''' I was - wha ... what are you talking about, Shelbyville? Why would we want to marry our cousins?
-->'''Shelbyville:''' Because they're so attractive. I thought that was the whole point of this journey?
* In ''JusticeLeagueUnlimited'', Gorilla Grodd assembles a new Legion of Doom, but, aside from opposing the Justice League, keeps their long term goals largely to himself. When it's revealed that his master plan is [[spoiler:to turn everyone on Earth into apes, [[Awesome/JusticeLeague Lex Luthor shoots him in the chest]], takes over the Legion, and redirects their efforts to more sensible endeavors (well, sensible for ''[[AGodAmI him]]'', at least).]]
** [[spoiler:Hawkgirl]] willingly signed on to infiltrate Earth and learn the weaknesses and abilities of the planet's society, military strength and its heroes in order to [[spoiler:help the Thanagarians subjugate the planet to build their hyperspace bypass. Once she learns the bypass will destroy the Earth, she defects and helps the League destroy it.]]
* In the ''WesternAnimation/BatmanTheAnimatedSeries'' episode "Joker's Millions", the Joker hires a replacement for Harley, claiming that it's cheaper than buying the real one out of jail. The one he gets isn't nearly as good as the real one, and she says twice that this "wasn't in the job description" (the second time when she's arrested; still, this was the Joker... [[TooDumbToLive she should have known better]]. Still, [[spoiler:she can take comfort with the fact that [[WomanScorned the real Harley did get revenge on the Joker]] for the insult...]])
* In ''ThePowerpuffGirls'' movie, Mojo Jojo persuades the girls to use their powers to build his "Help The Town And Make It A Better Place Machine" - which, it turns out, is actually a device to allow Mojo to create his own army of primates powered by Chemical X.
-->'''Blossom:''' Jojo, what happened?!
-->'''Bubbles:''' This isn't making the town a better place!
-->'''Mojo Jojo:''' Yes it is ... ''[[FalseReassurance for me]]!''
* ''KingOfTheHill'' had a show where Hank met another dad who was appalled with the way the history of the Alamo was being rewritten in the new history books the school had recently purchased. They both agree to put on a play that showed the history of the Alamo, with Hank building the set and the other guy writing. Turns out Hank's vision was of the traditional heroic picture of the battle he remembered from his childhood and the other guy had written a play depicting all the soldiers as drunks and cowards (not because he thought it was more historically accurate, just for the buzz such a "controversial" depiction would get him and his Hollywood dreams).
* The Captain of the Guard allowed the Viking leader Hakon to invade Castle Wyvern in the premiere of WesternAnimation/{{Gargoyles}} in exchange for what is implied to be allowing Demona and the other Gargoyles to gain control of Castle Wyvern. When Hakon decides after capturing Castle Wyvern to smash the hibernating Gargoyle statues, the Captain of the Guard attempts to stop him, citing that this was not what they agreed to do. Unfortunately, Hakon forces him back and resumes smashing the hibernating Gargoyles, with the Captain of the Guard only being able to watch in horror at what he unwittingly brought about.
[[/folder]]
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