%% Image and caption selected per Image Pickin' thread: http://tvtropes.org/pmwiki/posts.php?discussion=1333447927090162700
%% Please do not change or remove without starting a new thread.
%%
[[quoteright:333:[[Webcomic/TheOrderOfTheStick http://static.tvtropes.org/pmwiki/pub/images/SharkPool_OotS_close_1921.png]]]]
[[caption-width-right:333:Where did they find an [[AcidPool acid-breathing]] shark?]]

->''"[[WhyDidItHaveToBeSnakes Why sharks]]? Why couldn't it be otters? I wouldn't mind dropping into a tank of otters. [[PlayfulOtter They're fun.]]"''
-->-- '''Ron Stoppable''', ''WesternAnimation/KimPossible''

A body of water filled with any variety of unpleasant creatures, such as [[NeverSmileAtACrocodile alligators]], killer jellyfish, {{piranha|Problem}}s, or [[ThreateningShark sharks]] (with or without [[FrickinLaserBeams frickin' lasers]] [[Film/AustinPowers on their heads]]). Inconvenient heroes and their sidekicks are either suspended over the pool on a slowly-descending rope, or are delivered into it by way of a chute or TrapDoor. Also may be used to dispose of [[EvilMinions henchmen]] who have [[YouHaveFailedMe failed for the last time]].

The hole or vat may contain substances besides water, including molten metal, toxic waste, hot lava, or, for the villain who happens to have a SweetTooth, boiling chocolate, caramel, or any sugary or savory food in liquid form. See also AcidPool.

Compare with AnimalAssassin, where the dangerous animals are delivered to the victim rather than the other way around.

See also FedToTheBeast. The SnakePit is a version with less water [[ExactlyWhatItSaysOnTheTin and more snakes.]]

Has nothing to do with the TV series ''[[DragonsDen Shark Tank]]''.

----
!!Examples

[[foldercontrol]]

[[folder:Anime & Manga]]
* ''Anime/ExcelSaga'' features the title character frequently being dropped into a pit of alligators, piranha, and/or various other nasties by her superior-slash-object of obsessive affection, Il Palazzo. When Il Palazzo's wrath is imminent the rope to open the trap door for the pit spontaneously descends (by mechanisms unknown) into his reach. [[Manga/ExcelSaga In the manga,]] the animals in the pit become increasingly ludicrous (''baboons!''), while the main characters lampshade the pit's creatures on a regular basis, for example wondering if Lord Il Palazzo personally hunts the animals put down there, since there shouldn't be any members in the organization besides the main characters.
* Rando hangs Yusuke over a pond of piranha-like fishes in ''Manga/YuYuHakusho''.
* ''Manga/PokemonSpecial'': Aqua Admin Ark, feeling as if LockedInARoom and his handmade DrowningPit variant weren't lethal enough, calls out his Sharpedo to turn it into a makeshift SharkPool. Ironically, attempting to execute a [[JunglePrincess Nature Heroine]] in this fashion wound up taking a bite out of his own fisherman's basket instead.
* DragonBall offered an odd inversion when Emperor Pilaf lowers a cage containing a pair of crocodiles from the ceiling.
* The boxing club president suspends Mako Makanshoku above a transparent vat of boiling oil in [[Anime/KillLaKill Kill la Kill]] episode 1, threatening to turn her into Mako tempura if Ryoko fails to turn in herself.
[[/folder]]

[[folder:Comic Books]]
* Happens regularly throughout various incarnations of ''Franchise/{{Batman}}'', where he utilizes his grappling hook at the last second.
** Although the [[Series/{{Batman}} Shark Repellent Bat-Spray]] probably deserves a special mention.
** And it was on a rack labeled "Oceanic Repellent Bat-Sprays" and there were three other varieties for different animals around it.
** In ''The Joker's Five-Way Revenge'' (a notable comics story marking the return of the [[MonsterClown psychotic murderous]] [[AlternateCharacterInterpretation version of the character]]), the Joker threatens an old henchman (who he suspects of having betrayed him) with this... unless Batman volunteers to take his place. Naturally, Batman accepts. Naturally, the Joker reneges and dumps them both in the pool. Naturally, Batman beats the trap, rescues the hostage, and collars the Joker.
* In the comic ''ComicBook/GorskyAndButch'', the MadScientist Dr. Fishstein/Fishmeyer/Fisherking has this as his preferred method of doing evil. Being completely incompetent, he keeps forgetting about water....
* ''ComicBook/{{Wanted}}'' has [[LawyerFriendlyCameo alternate universe Batman and Robin]] captured by Mr. Rictus, suspended over a tank with a man-eating robotic octopus. [[spoiler:Because they can't remember that they are superheroes, they die horribly.)]]
* In one ''Comicbook/{{Daredevil}}'' storyarc, the hero ends up in an old mansion [[DeathTrap converted into a gigantic house of DEATH]]. At one point, he gets thrown into a tube and ends up in a pool... which, [[ForgotToFeedTheMonster due to lack of maintenance, featured a half empty base, and a suffocating shark]]. Subversion!
* Played with in ''ComicBook/{{Sillage}}'' by Ehmte-Ciss-Ronn. His race is naturally aquatic and his shark-equivalents smart enough to recognise him as their master. So instead of activating a trap door, the panic button under his desk instantly floods the whole office.
* In the ECComics story "Piecemeal" (''Shock [=SuspenStories=]'' #8), a wealthy naturalist with a large collection of rare fish is murdered in typical EC fashion by his buxom wife who falls in love with his younger brother. The latter two then go out for their usual midnight swim, only to encounter in the pool the naturalist's latest acquisition: a shark.
[[/folder]]

[[folder:Comic Strips]]
* One ''ComicStrip/TheFarSide'' cartoon features medieval soldiers storming into a castle on the drawbridge. One of them looks down to see what's in the moat, and shouts "Ooh! Goldfish, everyone!"
* ''ComicStrip/TheWizardOfId'' has the moat around the castle filled with {{Stock Ness Monster}}s.
* [[TabletopGame/MagicTheGathering Benalish Hero]] in ''ComicStrip/WhatsNewWithPhilAndDixie'', after [[AsskickingEqualsAuthority becoming]] the [[PirateGirl Pirate Queen]] [[http://www.airshipentertainment.com/growfcomic.php?date=20090308 got this]]:
-->'''Benalish Hero:''' ''(grinning)'' Jones! Someone put a ''shark'' in my bath!\\
'''Jones:''' ''(scared)'' R-r-really, o Queen?\\
'''Benalish Hero:''' Next time make it a ''big'' one.
[[/folder]]

[[folder:Films -- Animation]]
* In ''Disney/TheEmperorsNewGroove'' a pull on the wrong lever drops characters into a crocodile pit. Even the lever's creator questions the wisdom of this setup.
* In the 1986 ''WesternAnimation/TransformersTheMovie'', anyone the Quintessons found "innocent" was dropped into a tank filled with Sharkticons.
* In ''WesternAnimation/DespicableMe'', Vector's living room sits ''on top'' of a shark tank -- with a ''transparent floor''.
[[/folder]]

[[folder:Films -- Live-Action]]
* Cleverly inverted in ''Film/DeepBlueSea'': the shark tank in question was built by the protagonists and most of the movie consists of the sharks breaking into the non-tank parts of an aquatic research base.
* In ''Film/AustinPowers'', Dr. Evil ''wanted'' a pool full of sharks (with laser beams attached to their heads), but had to settle for ill-tempered mutated seabass. In the third movie, Dr. Evil ''did'' get sharks with FrickinLaserBeams attached to their heads. as a gift from his newly evil son Scott.
* ''Franchise/StarWars''
** The garbage pit in ''Film/ANewHope'' is a combination of this and the DescendingCeiling.
** Revisited ''twice in the same movie'', with both the Rancor and the Sarlacc Pit in ''Film/ReturnOfTheJedi''.
* ''Film/JamesBond'' villains are notorious for this.
** Ernst Blofeld pulls off his [[TheBlofeldPloy signature move]] in ''Film/YouOnlyLiveTwice'' by dumping one of his underlings into a piranha tank.
** In ''Film/{{Thunderball}}'', Largo tosses a mook who has failed him into a swimming pool. Not so bad, except it has a TrapDoor that opens to let ''in'' a school of hungry sharks. Bond winds up in it too, but (no need for spoiler warning here:) Bond lives.
** Mr. Big/Kananga has a shark pool in his ElaborateUndergroundBase in ''Film/LiveAndLetDie''. And earlier in his Louisiana lair, Dragon Teehee strands Bond in a large pond full of crocodiles and/or alligators.
** Karl Stromberg has a shark pit in his lair in ''Film/TheSpyWhoLovedMe'' with push-button TrapDoor access.
** Hugo Drax drops Bond into a pool with a reticulated python in it in ''Film/{{Moonraker}}''.
** Franz Sanchez feeds Bond's friend and collaborator Felix Leiter to a shark in a marine research facility in ''Film/LicenceToKill''. He survives, but is badly mutilated. Bond is certainly [[{{Revenge}} NOT pleased]] when he finds out.
** ''Film/NeverSayNeverAgain''. Fatima Blush turns the Caribbean into a giant version by sending electronically controlled sharks to attack Bond after placing a TrackingDevice on him.
* In ''Film/ThePhantom'', the Sengh Brotherhood has a Shark Pool in their ElaborateUndergroundBase. This is one of the parts of the film lifted directly from the very first ''[[ComicStrip/ThePhantom Phantom]]'' story, published way back in 1936, so the trope is at least that old.
* Subverted in ''AceVentura: Pet Detective'', when Ace stumbles into a literal Shark Pool that turns out to actually vindicate the man he is investigating, who was shaping up before that to be a classic arch-villain. (Ace thought it contained the stolen Miami Dolphins mascot.)
* The opening scene of the French movie ''Le Magnifique'': A spy is trapped in a phone booth, which is then lifted by an helicopter (!!) and dipped into the sea, where a squad of frogmen attach it to a shark's cage before opening the door. The scene is purposefully over-the-top as it's a parody of the whole ''James Bond''/''OSS 117'' type of spy literature.
* In the ''Stormbreaker'' movie, Literature/AlexRider is dropped in a tank with a giant Portugese Man o'War. That was in the book, too.
* One villain in ''Film/SpeedRacer'' keeps a tank of pihranas in his truck which he uses to threaten Taejo.
* In the 1936 ''{{Film/Flash Gordon|Serial}}'' film serial, while in the underwater city, Flash is locked in a tank to fight a shark.
* In ''Film/KickAss2'', the main villain has a shark tank as part of his personal supervillain lair. However, the shark does nothing but lay at the bottom of the pool, causing people to think it's dead. [[spoiler:As it turns out, it's just hungry.]]
* ''Film/{{Colombiana}}''. A {{ponzi}} embezzler has a covered pool in his BigFancyHouse, which he delights in telling his PaidHarem is full of sharks that will attack at a single drop of blood. Cue the hitwoman protagonist infiltrating by swimming through the pool, unmolested by the sharks as she's not bleeding. She then kills his bodyguards, lures the mark out onto the pool covers, {{kneecapping}} him so he falls through an open cover. Now that there's blood in the water, the sharks attack him in a frenzy. Cue headlines: SHARKS EAT SHARK.
[[/folder]]

[[folder:Literature]]
* ''Literature/JamesBond''
** The original ''Bond'' books do this too. In the original ''Film/DrNo'', Bond was dropped into a pool with a giant squid.
** Leiter is mutilated in ''Literature/LiveAndLetDie''; they stole the scene for ''Licence to Kill'', which wasn't written by the creator of Bond.
* ''[[Literature/TheElminsterSeries Elminster in Myth Drannor]]'' features fish-feeding, but with separate mincing (elves are tidy):
-->''Symrustar had over a thousand finned and scaled pets here. From the crowning bowl where she now scattered morsels of the secret food she mixed herself (Amaranthae had heard it said that its chief ingredients were the ground flesh, blood, and bones of unsuccessful suitors)''... (after next page there is little doubt).
* ''Literature/{{Discworld}}''
** In ''Discworld/TheLastHero'', EvilOverlord wannabe Evil Harry Dread is cheated and gets [[FriendlyPlayfulDolphin dolphins]] instead of sharks for his pool.
** Lord Vetinari is said to have a Scorpion Pit. Various characters have mentioned it, but we've never actually seen it. In ''Guards! Guards!'', Vetinari himself is thrown into a dungeon and reveals that his predecessor was a little too gung ho with this trope, and had used scorpions, snakes, ''and'' rats. Vetinari actually befriended and advised the rats, so now they were the only ones left (and quite loyal to him). Whether or not this is the same place as the aformentioned Scorpion Pit is unknown.
** Paul Kidby did an illustration of the scorpion pit for ''The Art of Discworld''. In it is a mime. Hung upside down. Opposite an (unseen) plaque saying "LEARN THE WORDS". Do ''not'' try to do mime in Ankh-Morpork.
* The "slow death caused by being lowered into a pond full of killer fish" idea is OlderThanFeudalism. Seneca wrote about a wealthy Roman who was really pissed off at one of his slaves for breaking a glass when the emperor was visiting. So he decided to have the slave thrown into a pool full of famished moray eels, because that way it'd take longer for him to die. Good times! Thankfully, the story ends with the slave being spared because the emperor finds the idea barbaric.
* Seneca's idea is recycled by Robert Harris in the novel ''Pompeii'', where the main villain does this to a slave who kills a tank of rare expensive fish. In front of the slave's old mother.
* At the end of the DanBrown book ''Literature/DeceptionPoint'', one of the heroes threatens the villain by [[MoralDissonance holding a wounded assassin over a large group of frenzied sharks.]]
* The second book of the ''Literature/{{Caretaker}}'' trilogy, ''Whirlwind'' has a particularly nasty version: a [[http://en.wikipedia.org/wiki/Candiru candiru]] pool. The BigBad actually breeds the things just so he can have this nifty pool to threaten people with. People thrown in take many days to die, during which time they are in agony. Some even try to drown themselves in order to avoid this, but "the body's impulse to stay alive is remarkably strong, even with the certain knowledge that one would be far better off dead."
* MatthewReilly loves this trope. It all started when the BigBad noticed killer whales hanging around in the dive pool, and got re-used with caimans, Komodo dragons and sharks [[OncePerEpisode in his next books]].
* ''GentlemanBastard''
** In ''The Lies of Locke Lamora'', crime boss Capa Barsavi has an enclosed pool beneath his ship-based headquarters, in which he always keeps "something nasty" for when he drops victims into it.
** The city of Camorr also uses a variant as part of its justice system. At the Shifting Market, prisoners condemned for crimes such as rape and murder are granted a reprieve if they can fight off an angry devil fish (which is apparently like a really pissed off octopus) with naught but a tiny dagger. Few people, if any, succeed at this task.
* ''Literature/{{Animorphs}}''
** In ''The Illusion'', a scientist is dropped into a pit of Taxxons -- giant, eternally-hungry, alien centipedes which eat everything they can get their mouths around.
** There's a more literal narrow aversion in ''The Escape''. Marco is halfway to shark morph in the school swimming pool and really wanting to rip into some boys who are bullying him. It's only Jake talking to him that convinces him to reverse the morph and let it go.
* A particularly chilling example of this trope occurs in the autobiography ''Literature/WhenRabbitHowls'' written by the multiple personalities of a woman. As a punishment her sadistic stepfather [[spoiler:lowers her into a well infested with snakes. The trauma of this single event finally pushes her over the edge and she begins to split off her personalities to deal with her abuse.]]
* ''Literature/{{Swellhead}}''. Seeing how the ElaborateUndergroundBase looks like a classic SupervillainLair, TheDitz asks where the alligator pit is. Someone presses a button on the CoolChair and the hero and his sidekick nearly fall into a trapdoor from which there's a bad smell and the sound of something thrashing about. [[spoiler:Two people fall in there for real later on, but not our hero thanks to his LevitatingLotusPosition.]]
[[/folder]]

[[folder:Live-Action TV]]
* In the 2006 ''Series/RobinHood'' series, Robin at one point is lowered into a pit of venomous snakes... that were [[YouFailBiologyForever clearly harmless boa constrictors]].
* One sketch in the BBC series ''Series/TheWrongDoor'' has an evil genius discussing this with a workman fixing his TrapDoor. The workman points out that piranhas aren't that deadly, being omnivores, and pointing out that his last victim is still alive. He then recommend polar bears to be the optimum creatures for a killing pool.
* The antagonist of ''Series/TheOuterLimits'' episode ''The Camp'' kept a giant squid-like monster in a tank and used it as a means of executing prisoners. On occasion, a tentacle would be broken off and used as food.
* A ''Series/SaturdayNightLive'' ''James Bond'' movie parody has archvillain Christopher Walken taking Bond through his lair, still under construction due to contractors being behind schedule. Walken shows Bond architectural renderings of what he ''would'' do, including dropping him into a shark tank.
* In ''TheVampireDiaries'' the moonstone is placed in a well filled with vervain, making it an AcidPool to vampires. It also contains snakes, though possibly only by coincidence.
* In the ''Series/{{Batman}}'' episode "The Spell of Tut", King Tut uses a Crocodile Pool as a DeathTrap for Robin.
* ''Series/{{CSI}}'' has a plot where a killer put a shark in a casino swimming pool, resulting in it eating someone (thus making it a double duty trope with AnimalAssassin).
[[/folder]]

[[folder:Puppet Shows]]
* Kim Jong-il has one in ''TeamAmericaWorldPolice'', which he drops Hans Blix into.
[[/folder]]

[[folder:Tabletop Games]]
* ''[[TabletopGame/DungeonsAndDragons Dungeons & Dragons]]''
** The add-on ''Dungeonscape'' features an acidborn template... making... wait for it... SHARKS IN ACID. Which is the [[RuleOfCool most awesome idea ever]].
** The template can also be adapted to produce "lavaborn" creatures. Guess where they swim around.
** ''Literature/{{Dragonlance}}'' module [=DL12=] ''Dragons of Faith''. One of the traps in a maze is a TrapDoor leading to a pool filled with sharks.
[[/folder]]

[[folder:Video Games]]
* ''VideoGame/DwarfFortress''
** It is possible to create something much worse in ''Dwarf Fortress'' -- the Carp Pool!
*** Worse yet -- a croc pool. Alligators are 15 times bigger and proportionally meaner. And when they finally bite it, there are much more valuable bones and good leather. Tamed crocs outperform turkey in churning out tons of edible eggs... while sitting in their pool and biting in half any goblin who [[TrapDoor happened to drop in]]. Or be chained on the ground like guard dogs, since they're amphibious. Thus, it's possible to have a goblin dodge two guard crocs only to stumble off the road into croc pit with a handful of their brothers and sisters.
** Or you could just use one of the many species of [[http://dwarffortresswiki.org/index.php/DF2012:Shark shark]].
* Pools filled with [[GoddamnBats leeches]] are very common in ''[[VideoGame/{{Blood}} Blood 2]]''. And 90% of the times, the game REQUIRES you to swim through it.
* One mission in ''VideoGame/{{Hitman}}: Blood Money'' features one target who performs onstage above a shark tank. The pyros can be rigged to set her on fire, forcing her to dive into the tank, where she is promptly eaten.
* Mechanical shark tanks are an uncommon hazard for motorcycle stuntman JoeDanger.
* The {{Facebook}} [[MassivelyMultiplayerOnlineRolePlayingGame MMORPG]] ''[[http://en.wikipedia.org/wiki/Mob_Wars Mob Wars]]'' had a weekly [[LostForever limited heist]] that was offered from the 8th to the 13th of Feb '11 which involved [[http://www.facebook.com/album.php?aid=269827&id=8743457343 "smuggling a man-eating shark into their private pool"]].
* Exaggerated in ''VideoGame/PaperMarioTheThousandYearDoor'', where every single body of water, from the shoreline of Keelhaul Key to the docks of Rogueport ''to an innocuous, luxurious water fountain'' in Poshley Heights, has piranhas waiting to bite at Mario should he fall in.
* In ''GuildWars2'', the final fight in this Vexa's Lab mini-dungeon occurs over a pool of sharks. The boss regularly shatters portions of the floor and has a number of push/pull skills, causing hapless players to fall in.

[[/folder]]

[[folder:Web Comics]]
* The aforementioned acidborn shark from ''Dungeonscape'' is prominently featured in [[http://www.giantitp.com/comics/oots0541.html strip #541]] of ''Webcomic/TheOrderOfTheStick'', where O-Chul is dropped into a vat of spikes, acid, and an acid-breathing shark. The villains make wagers on his survival in a game show format. Coincidentally (or rather, not), Rich Burlew, the author, was involved in writing said add-on. [[http://www.giantitp.com/forums/showthread.php?t=193765 He says]], "If I thought I could have slipped [[Film/AustinPowers laser-headed sharks]] through the WOTC editing staff, I would have."
-->'''Demon-roach:''' [[SelfDeprecation They'll let any old hack write a sourcebook these days.]]
* [[http://questionablecontent.net/view.php?comic=994 "The Voice of Reason"]] from ''Webcomic/QuestionableContent''.
* Parodied in ''Webcomic/{{Adventurers}}'': the BigBad threatens to throw his enemies into a "vat of boiling sharks", but [[FridgeLogic soon realizes]] that it [[http://adventurers-comic.com/d/0037.html wouldn't work]].
-->'''Khrima:''' And this "boiling sharks" idea of yours... Wouldn't the sharks die if we boil them?
* The [[http://www.girlgeniusonline.com/comic.php?date=20090617 "Revenge of the Weasel Queen"]] side-story of ''Webcomic/GirlGenius''. Not only a pit of acid, but it's filled with mutant acid-resistant flying piranhas equipped with flamethrowers and battle axes. And much, much more! There's a reason why the Weasel Queen calls it her "Pit of [[DoomyDoomsOfDoom DOOOOOM]]". When you go through the list of threats, PhilFoglio covers all the tropes of this genre. What trope is covered by the robotic Morris dancers? RuleOfFunny, CrazyAwesome, NinjaPirateZombieRobot, MadScience....
* ''Webcomic/BobAndGeorge'' [[http://www.bobandgeorge.com/archives/041023c With robotic sharks and two other death traps]]
* Used in the [[http://tvtropes.org/pmwiki/pmwiki.php/Main/ActionPrologue Action Prologue]] of "[[http://ajcomic.com/?p=152 Average Joe]]" - with [[http://tvtropes.org/pmwiki/pmwiki.php/Main/FrickinLaserBeams Frickin' Laser Beams]] strapped to their heads, no less...
* ''Webcomic/SaturdayMorningBreakfastCereal'': Note for next shark tank: [[http://www.smbc-comics.com/?id=916 use more water.]]
[[/folder]]

[[folder: Web Original]]
* The fictional movie trailer ''[[http://www.youtube.com/watch?v=6CY_HGl6W2U Shark Pool]]'', naturally enough, features one of these. However, it's a ''swimming pool'', and the only thing making people go into it is abject stupidity, despite the fact the OnlySaneMan keeps telling them not to.
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/BatmanTheAnimatedSeries''
** SelfDemonstrating/TheJoker does this in the episode "The Laughing Fish", in a scene adapted directly from the example under "Comic Books".
** "Mad Love" does this with piranhas. The Joker had concocted it as one of his many potential ways of eliminating Batman, but gave up on it because there was no way to make it funny. He had wanted to call it the "Death of a Thousand Smiles", but piranhas are incapable of smiling, even when given Joker-Venom. Harley Quinn tried to implement the plan herself to impress him, reasoning that the frowns would ''look like'' smiles if you lowered Batman into the tank upside-down. Joker was furious, however, because [[DontExplainTheJoke she had to explain the joke]].
** In "The Underdwellers", the Sewer King tries to throw Batman into a pool of alligators, but falls in himself. However, the Sewer King laughs and explains that his alligators are 100% loyal and would never harm him.
* ''WesternAnimation/BatmanBeyond''
** In the episode "Unmasked", a member of Kobra who let the plan slip is tossed into a pit of snakes. He doesn't get a last-second reprieve, either.
** In the episode "Out of the Past", two mooks try to throw Terry into an alligator pool, but he breaks free and throws one of them in instead. To his credit, the mook fights off the alligators with his machete and escapes.
* Several ''WesternAnimation/LooneyTunes'' show alligator-filled versions.
** A late-entry ''Wolf and Sheepdog'' cartoon has Ralph Wolf rigging up a can't-miss deathtrap for Sam Sheepdog, with an armory of weapons at point-blank range, the bluff he's on undercut and rigged to break off over a big tank full of hungry crocodiles -- just as he's throwing the master switch, the 5:00 whistle blows. He rolls his eyes and sighs "Pshaw!" and companionably heads home with Sam.
-->'''Sam:''' Better luck next time, Ralph.\\
'''Ralph:''' Oh, sure! You can't win 'em all, Sam. Nice day, huh?\\
'''Sam:''' Yep. Good to be alive, Ralph.
* ''WesternAnimation/KimPossible'' used several variants of this:
** Dr. Drakken used the standard shark version in his first episode.
** Another villain had a tank of electric eels.
** In his first apperance, Seņor Senior Sr. threatened Kim with ravenous koi because "the piranha have not yet arrived."
** Cheapskate villain Frugal Lucre once threatened Kim and Ron with a kiddie pool full of baby snapping turtles.
** Dr. Drakken goes over-the-top in a later episode by dropping a chained-up Kim in a locked safe into a [[strike:bottomless]] [[DrowningPit very very deep chasm filled with water]], covered in six feet of ice, and containing a shark and man-eating squid. She escapes thanks to a few {{Contrived Coincidence}}s.
** Seņor Senior Sr. also had a shallow pool with crocodiles.
** Professor Dementor had an almost generic shark pool, filled with lava!
** In "[[Recap/KimPossibleS3E4BadBoy Bad Boy]]" [[SuperpoweredEvilSide Evil!Ron]] had a piranha pool prepared in order to scare [[TheDragon Shego]] into complete obedience. It worked.
* In ''WesternAnimation/TheVentureBrothers'' episode "Are You There, God? It's Me, Dean", the Monarch has the main characters tied up and prepared to drop them all into a river infested with [[http://en.wikipedia.org/wiki/Candiru candiru]] fish. Venture mocks him, claiming the candiru's ability to swim up a man's urethra is an urban legend, too bad he's [[http://www.straightdope.com/columns/010907.html wrong]]. (You may now [[NightmareFuel cringe]] if you're a guy.) He has also used an actual pool of sharks to aid in the execution of a purportedly disloyal henchman. Although the sharks didn't touch him, because he'd already [[ThereIsNoKillLikeOverkill replaced the guy's blood with acid]].
* ''WesternAnimation/JackieChanAdventures'' has Jackie and Tohru suspended over one.
* ''WesternAnimation/ThePiratesOfDarkWater'' features Bloth's Constrictus, a nasty alien creature that lives in a watery pit in his deck, and that he uses to dispose of enemies and [[YouHaveFailedMe stupid crewmen]]. Quoth the first episode:
-->'''Niddler:''' I want to be fed!\\
'''Bloth:''' Niddler, when have I ever lied to you? I'll feed you -- to the Constrictus!
* ''WesternAnimation/MegasXLR'' has Kiva and Jamie being suspended over a quantum singularity. Because it's funnier.
* In ''WesternAnimation/TeenTitans'', the villain Control Freak sics a ''mechanical'' shark named [[FluffyTheTerrible Glenn]] on Aqualad, because he's GenreSavvy enough to know the hero could command a real one.
* From ''WesternAnimation/TheTick'':
-->'''[[DiabolicalMastermind Chairface Chippendale]]:''' Unfortunately, the three of you aren't going to be around to witness my historic crime, because I'm going to feed you to my pit of ferocious man-eating alligators!\\
'''[[NaiveNewcomer Arthur]]:''' What?... What? ''(aside, to The Tick) What''?!\\
'''The Tick:''' ''(ahem)'' [[LampshadeHanging Standard villain procedure]].
* Dr. Doofenshmirtz from ''WesternAnimation/PhineasAndFerb'' has done this to Perry the Platypus a few times, such as in "The Ballad of Badbeard" with a pair of alligators.
* ''WesternAnimation/JimmyTwoShoes'': [[{{Satan}} Lucius]] has a TrapDoor that drops into a pit of...eel things in his office.
* Snap Trap from ''WesternAnimation/TuffPuppy'' has a shark tank as his favored methiod of tormenting [[ButtMonkey Larry]]. He also ties Kitty and Dudley up and prepares to dip them into it as a DeathTrap, but presses the wrong button and gets a LavaPit instead. He decides to go with it anyway.
* ''WesternAnimation/TheNewAdventuresOfSuperman'' episode "Luthor's Loco Looking Glass". Lex Luthor puts Jimmy Olson in a DeathTrap involving a sliding floor over a pool of sharks.
* ''WesternAnimation/ThePowerpuffGirls'' had HIM invent the "vat of boiling sharks" trick as part of a KnightsAndKnaves setup. HIM being a RealityWarper, HIM could go that in the middle of a test of logic puzzles and get away with it.
* ''WesternAnimation/BatmanTheBraveAndTheBold'': In "The Mask of Matches Malone!", 'Matches' (actually an amnesiac Batman) attempts to lower the Birds of Prey into a shark tank.
* ''WesternAnimation/TheMarvelousMisadventuresOfFlapjack'': Captain Johnny has one on board his ship in "Liar, Liar, You For Hire?". However, the shark is really [[spoiler:cardboard]].
* One episode of {{The Simpsons}}, "Bart The Daredevil", had daredevil Lance Murdock intentionally invoke this by agreeing to jump over a tank filled with man eating great white sharks, ravenous piranha, bone-crushing alligators, and the most frightening of all, a ferocious lion (the lion is actually added into the pool with the other aquatic predators). Lance makes the jump, but then falls off the rim into the tank. Luckily, he manages to survive. Naturally, it was the lion that nearly killed him.
[[/folder]]

[[folder:Real Life]]
* The Golden Nugget Casino Hotel in Las Vegas has a shark tank next to the swimming pool. It even has a transparent water slide that goes through the tank.
** The Atlantis Resort and Casino in Nassau has a similarly arranged shark tank, pool and water slide.
* The Georgia Aquarium has a shark pool with four foot long Bonnet Head Sharks -- that visitors are encouraged to touch. (They're fairly even-tempered sharks.)
* Most aquariums have tanks full of aquatic predators.
* The Carbrook golf club in Australia became famous for having [[http://www.youtube.com/watch?v=z7ARrPk8zhQ live bull sharks in a water hazard]].
* Golf courses in Florida regularly have to call Animal Control to remove alligators from their water hazards and avert this trope.
[[/folder]]

----