History Main / AbsurdlyIneffectiveBarricade

* ''Webcomic/{{Unsounded}}'': The Lions of Mercy quickly set up an impressive shield war and defensive barrier when Cresce launches their counter-attack at Grenzlan, only for the people they'd been raping and murdering to burst out of the unlocked building behind them using [[ImprovisedArmour a table]] to knock a bunch over and ruining their defensive position.

* In ''Literature/TheMonsterAtTheEndOfThisBook'', Grover's brick walls are completely ineffective at [[NoFourthWall stopping the reader from turning the page]].

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* ''WesternAnimation/TheSpongeBobMovieSpongeOutOfWater'': When Plankton attacks the Krusty Krab with a HumongousMecha, Mr. Krabs orders [=SpongeBob=] to bar the office door. [=SpongeBob=] puts up a flimsy chair against the door, which of course is completely useless when the robot busts the door (and the rest of the wall) down moments later.

* ''Film/{{Bean}}'':
** In the first movie, Bean, having accidentally defaced Whistler's Mother, locks the door and drags a plant pot in front of it to keep out the curator. A couple of seconds later, the curator enters via another door, right next to the one Bean locked.

* ''Manga/JoJosBizarreAdventure''

* In the ''Film/{{Bean}}'' movie, Bean, having accidentally defaced Whistler's Mother, locks the door and drags a plant pot in front of it to keep out the curator. A couple of seconds later, the curator enters via another door, right next to the one Bean locked.

* In ''Film/TheBluesBrothers'', at the end as the titular characters were going to deliver the 5 grand to the Cook County assessor's office, they did this to the lobby of the building they were in...to keep out ''the army.'' Bonus points for doing it again with office furniture to blockade the assessor's ''glass door and wall''.

* Unintentional example in the z-grade horror film ''Film/TheCurseOfBigfoot,'' where the main characters prepare to ambush and fire-bomb the titular creature by constructing a formidable and inflammable fortification consisting of...a stack of about three or four ''bales of hay'' in an ''open field''.

* ''Film/TheKnackAndHowToGetIt'' - protagonist Colin attempts to bar ladies man housemate Tolen from the house by nailing a 1x2 strip of wood across the door frame. Echoing the trope in ''The Young Ones'' (see TV), new housemate Tom, who is quite mad, paints his room completely white, including the windowpanes, justifying it as protection from The Bomb.

* In ''Film/{{Signs}}'', the family barricades all the doors and windows downstairs. Realizing they don't have enough wood to barricade all the upstairs windows, they instead barricade the doors of every upstairs room with a window. It's only after the aliens break into the attic that the family realizes they forgot to barricade the attic door.

* In ''Film/SonicTheHedgehog2020'', Tom accidentally tranquilizes Sonic and, while figuring out what he is, locks him in a dog kennel. With his back turned, Sonic wakes up and casually unlatches the kennel, since he has the dexterity.
* ''Film/TheThing2011''. One character hides from the Thing in a storeroom, protected only by a pair of swing doors. All he can do is stop them moving, in the hope that the alien monster won't realise someone has gone inside. It doesn't work.

* ''Film/{{Threads}}'': As World War III breaks out the Kemps attempt to build a lean-to shelter in their house using propped-up doors with mattresses and books piled on top. However, their house suffers extensive damage in the blast, leaving Mr and Mrs Kemp exposed to radioactive fallout which eventually kills both of them. [[note]]None of their three kids make it into the shelter and at least one of them is killed in the attack.[[/note]]

* Done to a great effect in "The Last Virgin" vignette of ''Film/VedoNudo'' - probably one of the earliest examples of outward/inward variety of the trope.
* ''Film/WorldWarZ''. While on an airliner thousands of feet up in the air, the protagonist realises that passengers in the compartments behind have become infected and the only thing separating them from the rampaging flesh-eating zombies is a curtain. Everyone starts piling luggage in front of the curtain, [[SoMuchForStealth only for a bag to fall through the curtain and give them away]]. Needless to say the barrier isn't very effective anyway.
* In ''Film/Tremors3BackToPerfection'', Burt has rebuilt his survival bunker to be proof against any attempt by Graboids or Shriekers to break in from underground or ground level. Unfortunately for him, the latest threat is the flying Ass Blaster, which comes crashing straight through his completely unprotected roof.

* ''Literature/{{Discworld}}''

** [[Recap/DoctorWhoS17E1DestinyOfTheDaleks "Destiny of the Daleks"]]: The Doctor and Romana take refuge behind a hastily cobbled together privacy screen. The Doctor says something like There, That Should Keep Them Out, and Romana sneers "That wouldn't keep out a determined mouse!"
** [[Recap/DoctorWho2005CSTheChristmasInvasion "The Christmas Invasion"]]: Jackie and Mickey put a wardrobe in front of the bedroom door in an effort to keep [[ItMakesSenseInContext a berserk Christmas tree from attacking them]]. Problem: The wardrobe is made of flimsy medium-density fiberboard, and the terrible tannenbaum just rips through it like balsa.
** [[Recap/DoctorWhoS31E1TheEleventhHour "The Eleventh Hour"]]: While Prisoner Zero, a hostile shapeshifting alien, is changing form behind a door that the Doctor locked with the sonic screwdriver, Amy asks if that will hold it. The Doctor sarcastically responds that it will because interdimensional alien multiforms are all "''terrified'' of ''wood''". Indeed, Prisoner Zero knocks down the door moments later.

[[folder:Web Originals]]
* ''WebAnimation/MurderDrones'': The security against the murder drones is a large remote access door, a hallway, and then another remote door. Except, [[spoiler:The second door is useless, because there's an AirVentPassageway accessible from the hallway that leads past the door and into the base.]]
[[/folder]]

[[folder:Web Video]]

* ''WesternAnimation/TheAmazingWorldOfGumball''

* ''WesternAnimation/Castlevania2017'': In [=S2E6=] "The River", Trevor [[https://www.youtube.com/watch?v=BV2ctp6m-3Q tries to board up a door]] but notices he has nothing on hand to actually fix the board to the door. So he tries jamming it under the handle, only for the board to slide off. And then the door opens outward.