History BeCarefulWhatYouWishFor / WesternAnimation

* Franchise/DCAnimatedUniverse:
** Subverted in the ''WesternAnimation/BatmanTheAnimatedSeries'' episode "The Man Who Killed Batman". Sid the Squid always wanted to be a big shot in the Underworld and seems to get his wish as he seemingly kills Batman--only for several criminals to try to kill him so they can say they killed the guy who killed Batman, the Joker to try to kill him for taking away killing Batman from ''[[TheOnlyOneAllowedToDefeatYou him]]'', and Rupert Throne to think that the hapless guy really trying to make a move against Throne when Sid comes to him for help and attempt to kill Sid himself. However, as it turns out Batman was merely FakingTheDead and saved Sid and captures Sid. The subverted part? Even though Sid is sent to prison, he's greeted to the sound of cheers from inmates who welcome the man who almost killed the Dark Knight and made idiots out of the Joker and Throne, leading Sid to feel like he finally made it in spite of being in the slammer.
** ''WesternAnimation/BatmanBeyond'':
*** In "Disappearing Inque", Aaron Herbst, who worked at Gotham Cryogenics is infatuated with the frozen shapeshifter Inque, [[ConverseWithTheUnconscious and talks to her in her inert state about his unfulfilling life]]. After he kisses the ice-block, he's caught on camera in the act and is fired. He then frees Inque and begs her to have a similar mutation. [[AndIMustScream She does, but only in half-state, making him barely able to move or speak]]. After Inque's defeat, [[LaserGuidedKarma he ends up in Gotham Cryogenics in the same situation on the other end with a female caretaker, with the camera filming her conversation with him]].
*** In "Terry's Friend Dates a Robot", Terry's friend Howard asks for a sythoid girlfriend who is "totally devoted" to him. She turns out to be [[{{Yandere}} dangerously]] [[ClingyJealousGirl possessive]], and uses her [[SuperpoweredRobotMeterMaids enhanced strength]] to attack people she perceives as threatening him or getting between him and her.
** In the ''WesternAnimation/JusticeLeague'' episode Hereafter, Superman is catapulted into a BadFuture where the Justice League, and later all of humanity were wiped out by ComicBook/VandalSavage. Savage severely regrets his win, finding that ruling a dead Earth is meaningless, and actually helps Superman go back in time to stop himself from getting what he thinks he wants.

* ''WesternAnimation/TheSpectacularSpiderMan'': In "Group Therapy", Peter has to deal with Doc Ock forming his Sinister Six and ends up outclassed. After a rough day, he goes to sleep, saying "I wish I could just wake up tomorrow, with Doc and his merry morons back in jail." The Symbiote, whom he was with at the time, grants said wish... by ''puppeting'' Peter's sleeping body to fight against the Six (which it does manage to win), which leaves Peter both exhausted and more susceptible to the manipulations of the symbiote (which include being too ill-tempered to talk to JJJ, who called to inform him that his aunt has been hospitalized from a heart attack.)

* ''WesternAnimation/UltimateSpiderman'': The main arc of season one is that Norman Osborn wants to either have Spider-Man's powers, or control a being with those powers (which is why he had Dr. Octopus create Venom). In the season's WhamEpisode, Dr. Octopus [[TheDogBitesBack turns on Norman and injects him]] with the serum that turns him into the Green Goblin. He has the powers he always wanted, but at the cost of his sanity and humanity.
--> '''Norman''': What did you '''''do?'''''
--> '''Dr. Octopus''': [[LampshadeHanging I just gave you everything you ever wanted, Norman]]. Consider ''this'' my resignation.

* ''WesternAnimation/YoungJustice2010'': In "Misplaced", Zatanna tells Artemis how she wished her HelicopterParents would give her some space. The very next second, her father (and the rest of the adults) disappear before them. [[spoiler: At the end of the episode, Zatara sacrifices himself so that Nabu wouldn't possess Zatanna. She may never get her father back.]]
** [[spoiler: Cut to Season 2; we get a confirmation...[[TearJerker She didn't]].]]

* In "WesternAnimation/PhineasAndFerb Get Busted", Candace busts Phineas and Ferb on building an unsafe airlift, and their mother sends them away to a reformatory school; at first, Candace is glad they are away, but it is not too long before she begins to miss them. [[spoiler:Then when she finds out [[TheAlcatraz how the reformatory school is run]].]] Candace's friend Stacy even calls her out on this:This turns out to be AllJustADream, which then turns out to be [[DreamWithinADream Perry's nightmare]].

* ''WesternAnimation/GarfieldAndFriends'': In one episode, Garfield found a wishing well and wished there were no more Mondays. At first, when he learned the wish became true, he was happy. A few weeks later, Garfield felt the drawbacks of a world without Mondays: the streets were full of garbage because garbagemen only came at Mondays; gyms that used to be open for all days of the week were closed; movie theaters never showed new movies because they only changed their movies at Mondays; Jon couldn't buy more food because he always received his paychecks at Mondays; and he always made lasagna at Mondays. Being a BigEater, the two last bits were what horrified Garfield the most. He then returned to the wishing well, desperately asking for the Mondays to be back. The well refused and threatened to remove other stuff, until the well's mother, who revealed they were actually aliens who look like wells, forced him to restore everything back to normal. Garfield then started loving Mondays. At least until he was reminded of why he hated them in the first place.
** In another episode Garfield gets a fairy godfather who grants him three wishes. The first wish is for lasagna, which the godfather steals from a nearby chef. The chef immediately suspects Garfield and takes it back. Then Garfield wishes for money to buy lasagna with. The godfather zaps in money from a bank and Garfield is promptly thrown in jail.

* ''WesternAnimation/InfinityTrain'': Simon hopes to get his number as high as it can go. Unfortunately for him, the train runs on golf rules, where lower is better and higher generally means finding out BeingEvilSucks.[[spoiler: He eventually gets a number so big it covers his ''entire body'', when the previous "high score" holder only had hers wrap around one arm. He achieves this at the low, low cost of betraying everyone he'd held dear, attempting to murder Grace [[UngratefulBastard immediately after she'd saved his life]], and being almost immediately killed by a Ghom.]]

* ''WesternAnimation/{{Rugrats}}'':

* In the Season 5 premiere of ''WesternAnimation/AdventureTime'', Finn and Jake chase the Lich into a mysterious room in an alternate dimension where a creature named Prismo offers to grant each of them a wish. Finn tries to wish that the Lich never existed, and ends up in an AlternateUniverse where [[spoiler: Simon Petrokov/The Ice King [[HeroicSacrifice sacrificed himself]] to prevent the Mushroom War, but wound up freezing the world for 400 years after getting slowly crushed to death by a frozen bomb. Finn ends up putting on the Ice Crown himself in an effort to save his family from a gang, and proceeds to go mad with power (becoming the new Ice King) and accidentally set off the bomb (which causes the Jake from his universe to turn into the new Lich).]] When Jake tries to make a wish to fix things, Prismo even gives him a brief speech warning him about this trope, as Prismo can't control the outcome of the wishes and the vaguer they are the more likely it is the wish will go wrong.

** Over in ''WesternAnimation/AdventureTimeFionnaAndCake'' this even happened to a version of [[spoiler:''the Lich himself'']], who wished for [[spoiler:all life in the universe to be extinguished]]. And sure enough, he ends up in an AlternateUniverse where such is the case... and finds himself with nothing to do, no purpose in life now that the one thing he wanted all along is granted. So he just sits there, year after year, utterly devoid of the will to do anything else. [[spoiler:He goes so mad as soon as he gets the chance to confront GOLB, god of chaos and He who the Lich dedicated his whole unlife to pleasing, he starts ''[[RageAgainstTheHeavens screaming in His face]]'' demanding to know why He allowed this, and gets [[AndIMustScream punished for it all]]]]. The wish didn't even ''need'' to be particularly twisted, so wrong was he in making it.

** Over in ''WesternAnimation/AdventureTimeFionnaAndCake'' this even happened to a version of [[spoiler:''the Lich himself'']], who wished for [[spoiler:all life in the universe to be extinguished]]. And sure enough, he ends up in an AlternateUniverse where such is the case... and finds himself with nothing to do, no purpose in life now that the one thing he wanted all along is granted. So he just sits there, year after year, utterly devoid of the will to do anything else. [[spoiler:He goes so mad as soon as he gets the chance to confront GOLB, god of chaos and He who the Lich dedicated his whole unlife to pleasing, he starts ''[[RageAgainstTheHeavens screaming in His face]]'' demanding to know why He allowed this, and being [[AndIMustScream punished for it all]]]]. The wish didn't even ''need'' to be particularly twisted, so wrong was he in making it.

** In "Squidville", Squidward gets fed up with Patrick and Spongebob's antics after they wreck his house. He moves into Tentacle Acres, a planned community full of squids who all share his interests (and sarcastic demeanor). Squidward enjoys it at first, but one BoredomMontage later he's grown fed up with it and actually starts to miss Spongebob's antics.
--->'''Squidward:''' They should just call it "Squidward's Paradise"! Or maybe too much paradise...

** In "The Curse of Princess Ivy", Amber steals the Amulet of Avalor so she can make it introduce her to a Princess. The Amulet brings Princess Ivy.

** When we first meet Puck, he plays LiteralGenie to Demona. Later, it's revealed that when Puck revealed himself to Xanatos for the first time, he offered him either a single wish or [[spoiler:a lifetime of loyal service as Owen Burnett]]. Proving himself to be the smartest person in the entire series, Xanatos chooses the latter.

** When we first meet Puck, he plays LiteralGenie to Demona. Later, it's revealed that when Puck revealed himself to Xanatos for the first time, he offered him either a single wish or [[spoiler: a lifetime of loyal service as Owen Burnett. ]] Proving himself to be the smartest person in the entire series, Xanatos chooses the latter.

* In the ''WesternAnimation/DragonTales'' episode "[[Recap/DragonTalesS2E5 One Big Wish]]", Max makes a wish on a wishing well to be bigger because [[HeightAngst he is tired of being too small to do certain things]]. At first he enjoys being bigger, but he keeps causing problems as he continues to [[AttackOfThe50FootWhatever grow... and grow... and grow... AND GROW... AND GROW...]]

** One of the darker episodes entitled "[[Recap/TheSimpsonsS8E23HomersEnemy Homer's Enemy]]" features said enemy, Frank Grimes, a man who's enraged that he had to struggle through everything in life to get where he is, whereas Homer had it easier than him [[GreenEyedMonster and thus Grimes resents him to no end]]. When Carl and Lenny question him for his rage, Grimes states: "''I would die a happy man if I can prove to you that Homer Simpson has the intelligence of a 6-year old!''" To ensure that he could prove his point, he tricks Homer into entering a contest exclusively to children to humiliate him. To his shock and bafflement, everyone loves Homer's presentation and he wins the contest, and Grimes is promptly driven insane by the illogicality of Homer's success, [[DrivenToSuicide and then he gets his wish when trying to fruitlessly imitate it]].

* The [=HumancentiPad=] episode of ''WesternAnimation/SouthPark'' has Cartman demanding God to "give me a courtesy lick before I get fucked!" after Cartman loses his [[Film/TheHumanCentipede Human Centipede]]/iPad hybrid. God complies by smiting Cartman with a bolt of lightning, landing Cartman in the hospital.