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[[quoteright:202:[[Film/RaisingArizona http://static.tvtropes.org/pmwiki/pub/images/grenade_304.jpg]]]]
[[caption-width-right:202:Notice anything missing?]]

Not related to TomatoSurprise, [[{{Pun}} though it can be related to]] [[ChunkySalsaRule chunky salsa.]]

The pin is pulled from a grenade on a [[BadassBandolier grenade belt]], causing the wearer and anyone in the immediate vicinity to explode. It can be used to elaborately kill a tooled-up enemy or as a makeshift suicide belt. Expect it to be used on a nearly triumphant enemy leading to a cathartic OhCrap moment for the villain before he explodes.

Related to GrenadeTag in which a character during hand-to-hand combat secretly plants a bomb onto their opponent's body before quickly retreating. Both are a subtrope of WhyAmITicking.

As for why it's called a Pineapple Surprise, British and American [[WorldWarOne World]] [[WorldWarTwo War]] and Vietnam-era grenades were nicknamed "pineapples", due to their shape (note the trope image.) Incidentally, WW2 German grenades were called potato mashers. Most modern grenades are spherical.
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!!Examples:

[[foldercontrol]]

[[folder: Anime ]]

* At the beginning of the final battle between Accelerator and Kihara in the second season of ''LightNovel/ACertainMagicalIndex'', the former [[OneHitPolykill takes out three mooks with this trick]]. The only remaining one [[OhCrap promptly craps himself]] and [[TooDumbToLive tries using the]] DamselInDistress (Accelerator's MoralityPet Last Order) as a HumanShield. Accelerator [[PistolWhipping doesn't appreciate it]].
* In ''Manga/KenichiTheMightiestDisciple'', during her first escape attempt from Yami's base, Shigure Kosaka pulls the pins on a mook's three grenades ''with her toes''. To his credit, the mook manages to throw the grenades away in time.
* Played for laughs in the ''Manga/{{Kochikame}}'' manga. Military crazed cop Volvo Saigo who's armed to the teeth has accidentally released his pins when fastening his seatbelt and from swimming. Since this is a cartoon, he gets better.

[[/folder]]

[[folder: Comic Books ]]

* Stephanie Brown does this to her father the Cluemaster in ''ComicBook/BatmanEternal'' #3; pulling the pin on one of the smoke canisters hanging on his costume when he tries to shoot her.
* Happens to a mercenary in ''DangerGirl and the [[Franchise/EvilDead Army of Darkness]]'' when his possessed hand pulls out the pins of the grenades he is wearing on his vest.
** Abbey herself pulls this on an enemy early in the original ''DangerGirl'' comic.
* Jon sable pulls this trick in ''ComicBook/ShamansTears'' #8: yanking the pin out of one of the grenades on a bandoleer worn by one of the nestlings as he flees their sewer lair.
* In the ''SixGuns'' mini-series, the Two-Gun Kid shots a flashbang off the vest of mercenary, causing it to detonate.

[[/folder]]

[[folder: Film ]]

* In the remake of ''Film/AssaultOnPrecinct132005'', one of the characters does this while about to be executed by the [[spoiler: CorruptCop]] bad guys. It was only a flash bang, but it still caused a significant injury and distracted the captors enough for an escape attempt.
* ''Film/CaptainAmericaTheFirstAvenger'': Captain America pulls the pin on a grenade being carried on the back of HYDRA bike during a bike chase.
* ''Film/CasinoRoyale'': A bomber tries to use a tiny keyring bomb attached to a fuel tanker to blow up a plane. After a long fight with Bond, the bomber triumphantly pushes the switch on his detonator...only to realize that Bond had attached the bomb to his belt loop. Cue OhCrap from the bomber and an amused grin from Bond.
* In ''Film/TheDarkKnight'', the Joker threatens to pull the pins on a jacket of grenades to escape the mobsters meeting with Lau.
* In the final battle in ''Film/GIJoeRetaliation'', [[spoiler:Firefly]] pulls out one of his special bombs to use on [[spoiler:Roadblock]], only to find that [[spoiler:Roadblock]] is holding the detonator. Boom!
* ''Film/IAmNumberFour'': Number Four kills the leader of the Magadorians by using his telekinesis to set off all of the leader's futuristic bullets while they're still strapped to his chest.
* ''Film/TheProfessional'': [[spoiler:Leon defeats the main villain using the suicide version of this.]]
* ''Film/RaisingArizona'': Hi accidentally grabs the pin of one of the BadassBiker's grenades.
* In ''Film/SherlockHolmesAGameOfShadows'', Watson shoots a mook who just pulled the pin on a grenade. The wound isn't fatal, but it's disorienting enough that the mook can't find the primed grenade in the sack of identical grenades it fell into.
* ''Film/TankGirl'': The title character does this to the Water and Power mook who captured her, blowing him to bits.
* Loki pulls this trick on [[spoiler:Kurse]] in ''Film/ThorTheDarkWorld''; detonating the grenade he is carrying on his belt.
* Creator/TomCruise's ''Film/TheWarOfTheWorlds'' has the main character pull the pins of at least one while he was being sucked into one of the tripods. Since he spit them out when his cagemates pulled him back, it seems implied that he [[PinPullingTeeth pulled them with his teeth]].
* In ''Film/X2XMenUnited'', Magneto pulls the pins from a squad of soldiers all at once using his powers.

[[/folder]]

[[folder: Literature ]]

* ''DocSidhe'': Doc does this while possessed by the spirit of the Warbringer; using magic to cause the grenades Blackletter's men are carrying to detonate while they are still wearing them.
* The short story ''Once More from the Top'' by A. Scott Glancy shows what happened when [[Literature/TheShadowOverInnsmouth the marines were sent to clear out Innsmouth]]. A couple of soldiers have succeeded in driving back a shoggoth with flamethrowers only to be fired on by the townspeople. Realising the safety lever has been shot off a phosphorous grenade clipped to his webbing, and that when it goes off he'll also kill his friend as he's wearing a flamethrower tank full of jellied gasoline on his back, a soldier leaps into the river where the shoggoth has retreated to and [[TakingYouWithMe blows them both up]].

[[/folder]]

[[folder: Live Action TV ]]

* In ''Series/AlmostHuman'', this is how [[Creator/KarlUrban Kennex]] finally brings down a RoboticPsychopath.
* ''Series/WalkerTexasRanger'': In "The Final Showdown Part 2", [[Creator/ChuckNorris Chuck Norris]] does this to [[BigBad Big Bad]]. After a long fight, Chuck and his adversary fall out of a window and land on top of a car. After they both roll off the roof, Chuck reveals that he pulled the baddies grenade pin. As he runs off, the grenade explodes.
* ''Series/StarTrekTheNextGeneration'': In ''Starship Mine'', after a scuffle with Picard, a thief makes off with a container of explosive trilithium resin. It turns out Picard removed a stabilizer from the container during the scuffle. She doesn't get far..

[[/folder]]

[[folder: Video Games ]]

* ''VideoGame/CallOfDutyBlackOps'': During [[ThatOneLevel "S.O.G."]], an NVA soldier pounces on Alex Mason. After the player struggles for a bit, Mason pulls the pin on one of Charlie's grenades and pushes him away.
** This foreshadows a moment at the end of "Payback": [[spoiler:after Frank Woods stabs [[TheDragon Lev Kravchenko]], Krav pulls the pins on all of the grenades in his bandolier at once. Woods [[HeroicSacrifice tackles him out the window and they explode off-camera]].]]
** It's also a reference to ''VideoGame/CallOfDuty 3'', wherein the exact same thing happened between the player and a Nazi soldier.
* One of the ways to complete "I Put A Spell On You" for the Legion in ''VideoGame/FalloutNewVegas'' is to [[spoiler: pull the pin on Davey Crenshaw's grenade and later use his pranking nature to convince Colonel Hsu that he planted the bomb on the NCR monorail.]]
** In fact, a variation on this trope is a valid way to stealthily initiate hostilities in the series, in general. You can reverse-pickpocket your own explosives, most often grenades, into NPC inventories... the obvious implication being that you pulled the pin beforehand. If they catch on, they even give an OhCrap or WhyAmITicking reaction.
* This is one of the takedowns you can learn in ''VideoGame/FarCry3''. Interestingly, the person you pull it on is already dead, as it is a follow-up to a stealth knife assassination. The "surprise" belongs to the group of his friends that his body gets kicked into.
* In the third ''VideoGame/{{Uncharted}}'' game this is possible to do when engaging in melee. Just make sure you get away in time.
* In ''VampireTheMasqueradeBloodlines'' "Nines" Rodriguez saves the PC from Sabbat goons by threatening them with a grenade. Given Nines is at a power level to curb stomp the 3 young Sabbat easily, '''you''' [[TheLoad seem to be the only reason]] he needs to use such a card.
* A possible tactic in ''VideoGame/VelvetAssassin'', although it's a StealthBasedGame so it might be more trouble than it's worth.

[[/folder]]

[[folder: Web Original ]]

* The title card for WebVideo/TheNostalgiaCritic's review of ''Film/{{Commando}}'' shows the critic holding four of Arnold's grenade pins, with him freaking out in the background.

[[/folder]]

[[folder: Western Animation ]]

* In ''WesternAnimation/FamilyGuy'', Stewie does this to Lois in the climactic fight scene of ''Lois Kills Stewie''.
* In ''GIJoe: Valor vs Venom'', Snake Eyes pulls the pins on every grenade on Storm Shadow's bandolier to escape him. Storm Shadow survives by tossing the belt before it's too late.
* The Question does this to a Cadmus mercenary in the ''JusticeLeagueUnlimited'' episode "Fearful Symmetry", but he's nice enough to remove the grenade belt before pulling the pins so the guy has a chance to get clear of the blast.
* ''WesternAnimation/SkysurferStrikeForce'' gives us Grenader, a [[ActionBomb sentient, person-sized grenade]] complete with a giant pin. The heroes usually pull it out before he's ready to use it.
* ''WesternAnimation/YoungJustice'': In "Summit", Kid Flash pulls the pins on the smoke grenades being worn on the vests of three Light ninjas.

[[/folder]]

[[folder: Real Life ]]

* U.S. Senator Max Cleland ended up being a real life case of this when a grenade whose pin had fallen out shredded both his legs and one of his arms during the Vietnam War. It turned out that the grenade came from a squad mate who had straightened all of the pins on his grenades (a dangerous but common enough practice during the war), but had failed to secure them with duct tape. Cleland and the hapless squaddie were disembarking from a helicopter, and the jolt of him jumping onto the ground was enough to jar the grenade loose.
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