History CrazyPrepared / FanWorks

[[AC:WebAnimation/{{RWBY}}]]
* Fanfic/RemnantsReclaimer: Huntsmen have a code and a passphrase for time travelers.

** Cole Sullivan arrives at Francoise Dupont already prepared to deal with [[BitchInSheepsClothing Lila]] and [[GullibleLemmings her followers]], ready to [[CaughtOnTape record every conversation she has]] with her. {{Justified}} by the fact that her cousin Marinette [[TheConfidant confided in her]] about all the trouble she was having ever since Lila returned to class. Further [[DownplayedTrope downplaying]] the extent of her preparations is how, despite being fully aware that Lila's favorite tactics include turning her classmates against those she dislikes, Cole doesn't make any effort whatsoever to reach out to or connect with any of them, considering them all to be {{Fair Weather Friend}}s and not worth her time or effort. This makes it all the easier for Lila to turn them against her. And despite being aware that this would happen, [[SurprisinglyRealisticOutcome it still wears on her]].

* The IDSE appears to be this in ''Fanfic/KyonBigDamnHero'', preparing tools for interactions with places that may not exist in case they do and any of the tools, such as a Dimensional Anchor, are necessary.
* In the ''Series/StargateUniverse''/''[[Series/BattlestarGalactica2003 Battlestar Galactica]]'' crossover "[[https://www.fanfiction.net/s/6409517/1/A-Tale-of-Two-Rustbuckets A Tale of Two Rustbuckets]]", the Colonial Fleet is stated to have contingency plans for numerous situations, including such things as the return of the Lords of Kobol, or a revolt by the Junior Pyramid League. Adama implements their first contact plan when he encounters ''Destiny''.

* In ''The Rift Effect'' (part of the FanFic/TheOmniverseEvent) Bernice Summerfield has a way to basically come back from the brink of ''death'' - mainly because her friends had become so savvy to the fact that she nearly dies, wherever she goes.
* ''Fanfic/AvengerKnight'' soon makes it clear that Batman is this even when he's co-existing with the Avengers of the Franchise/MarvelCinematicUniverse, to the extent that he has equipped any gadgets he might leave behind at crime scenes are equipped with self-destruct functions so that nobody else can analyse them in depth.
* In the remake of ''FanFic/BattleFantasiaProject'', a flashback explains [[Anime/SailorMoon Eudial]]'s car exploding with Sailor Venus having stuffed it with the lots of [[StuffBlowingUp gelignite]] and the remote-controlled detonator she carries everywhere, [[CombatPragmatist planning to blow it up when she returned at the base]].
* ''This'' trope, more than anything, is why Jadeite's attempt on Nanoha's life failed in ''Fanfic/WhiteDevilOfTheMoon''. ''Everyone'' at the wedding who could fight came armed and prepared to do so, ''just in case''. Justified if you've seen ''VisualNovel/TriangleHeart3'' because you ''know'' [[SomeoneSetUpUsTheBomb what happened]] the last time the Takamachi family had a get-together.
* In ''[[https://www.fanfiction.net/s/13064230/22/And-Now-Yet-Again-Still-Even-More-Fragments Nothing Wrong with your TV]]'', Alex (a post-HeelFaceTurn [[WesternAnimation/TeenTitans Control Freak]]) keeps two backups of his remote as well as two single-use remotes that will take him to a universe where he can build a fully functional version and a set of tools to jury rig a remote, just in case he's stranded somewhere without his regular remote. Unfortunately for Alex, [[WesternAnimation/MyLittlePonyFriendshipIsMagic Spike]] rifled through his belongings and ate the lot.

* In ''Fanfic/AmazingFantasy'', Roderick Kingsley's office is fitted with equipment that destroys all unauthorized audio and video recordings just to prevent his shadier dealings from coming to light, just in case someone tries to bug him or spy on him. This is why Miles isn't able to get an EngineeredPublicConfession out of him.
* ''[[Fanfic/TheZeroContextSeries Zero Context: Taking Out the Trash]]'' has Circe take a lightsaber with her just in case she's attacked at her own wedding, which comes to pass. Ellen is temporarily confused by this action until she's reminded just how much of a chaotic CityOfAdventure Muffinville is.

* ''Fanfic/TheUnexpectedRookie'': When the Decepticons crash the race and the Autobots transform to fight them, Sarge pulls out a ''machine gun''. How he got it past security (and ''why'' he thought he'd need to bring such a thing in the first place) is never explained, but it's certainly useful in helping the Autobots fight the Decepticons.
* In ''Fanfic/SpiderManAndPowerGirl'', experience with Kang the Conqueror in particular has inspired Reed Richards to devise a means of determining if history has been altered through time travel. When Reed, Johnny Storm and Peter Parker take the dimensionally-displaced Power Girl back to her reality of origin and realise that her reality has been altered, Reed already has access to equipment that will allow him to confirm when the new universe was altered and get some idea as to how it happened.

* ''Fanfic/NightsEndDaysBegun'' has [[Literature/{{Worm}} Weaver]] reveal during the [[Manga/MyHeroAcademia USJ Incident]] that she has left a capsule with some of her bugs with Amy, just in case she's in a situation where her communicator is jammed.
* There are several cases of this in ''Fanfic/ManehattansLoneGuardian'':
** Those that tampered with Neo Arcadia's Guardians did not want their upgrades getting activated in a timely fashion. There is a set of memory blocks keeping them from realizing that they have upgrades at all, and if they get past that, the password system requires them to enter a code ''two billion characters'' in length, with hundreds of characters to choose from. Thankfully, the perpetrators underestimated the Guardians' capacity for growth, and Leviathan is ultimately able to get her upgrades in order just by fighting those who have similar abilities.
** The Pyre of Fears' front door has a window in it created specifically to shrug off ''ballista bolts'', installed by one of the building's prior owners.

* In ''Fanfic/ATaleOfTwoRustBuckets'', the Colonial Fleet is stated to have contingency plans for numerous situations, including such things as the return of the Lords of Kobol, or a revolt by the Junior Pyramid League. Adama implements their first contact plan when he encounters ''Destiny''.

* In ''[[https://www.fanfiction.net/s/13064230/22/And-Now-Yet-Again-Still-Even-More-Fragments Nothing Wrong with your TV]]'', Alex (a post HeelFaceTurn [[WesternAnimation/TeenTitans Control Freak]]) keeps two backups of his remote as well as two single use remotes that will take him to a universe where he can build a fully functional version and a set of tools to jury rig a remote, just in case he's stranded somewhere without his regular remote. Unfortunately for Alex, [[WesternAnimation/MyLittlePonyFriendshipIsMagic Spike]] rifled through his belongings and ate the lot.

* In ''Fanfic/AmazingFantasy'', Roderick Kingsley's office is fitted with equipment that destroy all unauthorized audio and video recordings just to prevent his shadier dealings from coming to light, just in case someone tries to bug him or spy on him. This is why Miles isn't able to get an EngineeredPublicConfession out of him.

[[AC: ''Franchise/HarryPotter'']]
* ''Fanfic/HarryPotterAndTheMethodsOfRationality'' depicts Harry as (trying to be) one. The brief appearance of Mad-Eye Moody manages to upgrade his canon use of this trope. Apparently that magic eye of his that he has constantly scanning in every direction doesn't actually need to move--it provides perfect 360 degree vision no matter where it's pointed. He moves it around so that people ''think'' he needs to.

* In ''Fanfic/OhGodNotAgain'', [[spoiler:when Pettigrew is caught, Luna pulls out a animagus-proof jar that her father had her carry around in case she ever ran across an illegal animagus she wanted to capture]]. Even Harry is surprised by this.

* In ''[[https://www.fanfiction.net/s/3951749/21/Harry-Potter-and-the-Quantum-Leap Harry Potter and the Quantum Leap]]'' Hermione thinks of 151 things which could go wrong with transporting Norbert the baby dragon to the top of the Astronomy Tower and comes up with an appropriate plan for ''each and every one''.

-->A lesser known pureblood house of Morgan were survival nuts who conducted illegal experiments to make sure they had a contingency plan in any emergency. They had documented and conducted as many what if scenarios as possible over the years to ensure that they were prepared for anything. Most of the experiments were dangerous.

* In ''[[https://www.fanfiction.net/s/13064230/25/And-Now-Yet-Again-Still-Even-More-Fragments Endless Summer Days]]'', the Global Justice Network (along with numerous other agencies around the world) have that they call the "Crazy Eight": plans for scenarios they think will never come up, including time travel. When Ron seems to be in a GroundhogDayLoop, having remembered the entirety of the current day's events, they first test him for psychic potential then activate the code for time travel, which automatically deactivates the moment it's activated, making it only useful for time travelers.

** Cole also anticipates that her becoming the new Fox Heroine will not be received well by those who liked her predecessor, Rena Rouge. Predicting that those familiar with the Fox Miraculous will attempt to 'reclaim' it, she has Trixx and Tikki reshape it into an armlet, incorporating its original design into Vexxin's gear as a choker. This decoy immediately pays off twice in rapid succession against Rena Rage and Revengance.

* ''Fanfic/SunsplitSaga'': In ''Sunsplit'', Twilight Sparkle, who has more than one backup quill, she has "an array of colorful feathers from her saddlebags", along with a "ballpoint pen", that she only brought out, because all her quills were gone, and won't burn up like her quills did.

* ''Fanfic/OSMUFanfictionFriction'': Basil Valentine uses his PsychicPowers to pick up the Mobile Unit van and send it careening towards the nearest road. As the van rolls, Orla realizes that it's sorcery and reaches behind her {{Hammerspace}} spine to produce four necklaces with bezoar stones in their centers, urging Opal, Omar and Oswald to wear them in order to prevent Basil's powers from affecting them. It's never explained why she has the necklaces to begin with nor why they were stored in her {{Hammerspace}} spine.

* In Episode 67 of ''FanFic/SonicXDarkChaos'', Beelzebub put a shield over himself in case Tails tried to attack him, planted a self destruct mechanism in his lair in case Sonic and friends tried to free the slaves there, and installed an escape pod - complete with Warp drive and communications - in his chamber in case Sonic and his friends attacked him directly and he was forced to flee.

* ''Fanfic/WilhuffTarkinHeroOfTheRebellion'' posits that the main galactic civilization, and by extension the Galactic Empire that rules it and the Old Republic before the Empire, is ready to an insane amount of events, to the point that a junkyard planet turning out to be a planet-sized KillerRobot and [[ItMakesSenseInContext biscuits mutating in giant monsters]] can be dealt with effective ''standard procedures'' (and the latter being quite annoying for baron Orman Tagge, as it's one of his companies that makes them and they have procedures to ''avoid'' it happening). Thus Tarkin is legitimately surprised when he finds out there's ''another'' planet whose condition is so vile the ''Death Star'' is the pragmatic solution.

* In ''Fanfic/AnIdealGift'', Mikey forsaw that Irrilia would grow impatient with the tea leaves they had just harvested and switched the bowl with a bowl of leaves that had already been prepared.

* ''Fanfic/UnbreakableRedSilkenThread'': Shawn, the zombie survivalist. Not only does he wear a (possibly bullet proof) coat at all times, it's loaded with almost anything you could think of in it's many pockets. He also has a number of watches with different alarms to warn him what time it is, and has even installed an ELECTRIFIED BOMB PROOF DOOR TO HIS ROOM IN HIS DORM.

* In ''FanFic/WorldwarWarOfEquals'', once the aliens are confirmed to be a threat, most of the world stocks up on weapons, beef up their militaries, research anti satellite weapons, and even restart some previously canceled weapons projects all to combat the incoming invaders.

* ''Fanfic/WithThisRing'': Batman takes the cake. He managed to take down Constantine, when John was under a spell that made him invisible and so that no one wanted to even look at him. Batman noticed that no one was going into a certain part of the room or even looking at that part of the room, so he started attacking it to make sure.

So, when an alarm went off at the Cadmus Lab, Batman figured it was a good excuse as any to go poking around.

* ''[[https://archiveofourown.org/works/27736435 Zero Context: Taking Out the Trash]]'' has Circe take a lightsaber with her just in case she's attacked at her own wedding, which comes to pass. Ellen is temporarily confused by this action until she's reminded just how much of a chaotic CityOfAdventure Muffinville is.

* Fanfic/KhaosOmega uses one early in his story series' chronology, specifically [[VideoGame/MetroidPrime3Corruption Operation Phaaze]]. A Phazon Leviathan is en route to Norion, and the crew has to power a cannon that can destroy it before it can hit. Anise brings her XQ-designed Chrono Eclipse Cannon just in case the on-site cannon won't fire. [[ProperlyParanoid She ends up being the cause when she gets knocked into it via the blast responsible for her unique Phazon strain]].
* ''Fanfic/TheUnexpectedRookie'': When the Decepticons crash the race and the Autobots transform to fight them, Sarge pulls out a ''machine gun''. How he got is past security (and ''why'' he thought he'd need to bring such a thing in the first place) is never explained, but it's certainly useful in helping the Autobots fight the Decepticons.

[[AC: ''VideoGame/SuperMarioBros'']]

* In “[[https://archiveofourown.org/works/45662662/chapters/114906574 Arrowverse: Days of Futures Past]]”, Oliver Queen undergoes MentalTimeTravel from a dark 2040 back to 2011 so that he can stop this timeline coming to pass. As part of his trip back, Talia and Luke Fox advise Oliver to go to [[Franchise/{{Batman}} Bruce Wayne]] for help acquiring the needed resources to start as a vigilante, and Oliver is advised to inform Bruce “Tau Protocol, Sub-Section 8, Clause 5 has been activated”. Tau is a reference to time, confirming that the code is related to time travel, Subsection 8 means that the traveller is someone outside Batman’s immediate circle but who can be considered an ally, and clause 5 means the goal is to completely change history, which would only be allowed if the alternative was a horrifying future. Barbara Gordon notes that the code was intended to be a joke, but it is still acknowledged by the Bat-Family as valid.