History Main / YourDoorWasOpen

* ''Series/{{Lucifer}}'': {{Lampshade|Hanging}}d one of the times Lucifer lets himself into Chloe Decker's house:
-->'''Lucifer:''' The text said to meet you here.\\

* Parodied in ''Series/BirdsOfAFeather'', where Dorien had a habit of just walking into her neighbors' house. At one point, they locked the door. She smashed the glass panel next to the lock, undid it, and came in anyway.

* Parodied in ''Series/BirdsOfAFeather}}'', where Dorien had a habit of just walking into her neighbors' house. At one point, they locked the door. She smashed the glass panel next to the lock, undid it, and came in anyway.

See also: SwissCheeseSecurity, TrespassingToTalk and InterruptedIntimacy.

* In the town of Churchill (Manitoba, Canada), it is considered common courtesy to leave your house door and car door unlocked, just in case a stranger needs a place to hide from a ''[[EverythingIsWorseWithBears rampaging polar bear]]''. Car theft is not considered a problem as the town has no roads linking to the rest of Canada.

* In ''TheJetsons'' movie, the Furbalows do this after their daughter follows Elroy home. It's downplayed a bit in that they enter the room only after announcing their presence from the open doorway.

* Virtually any American SitCom, particularly noticeable in ''{{Friends}}''. This tendency is {{Lampshaded}} in ''Series/{{Coupling}}'' season 4.

* In ''TheJetsons'' movie,Furbie's parents do this after she follows Elroy home.

[[folder:Real Life]]
* A while back, UsefulNotes/TwinCities police officers had a campaign where they'd go up to houses during the night, and leave warnings if the door was unlocked. Eventually, this led to a pair of officers not-quite-legally entering a house and waking up a homeowner to politely tell him that he is [[http://www.freerepublic.com/focus/f-news/2033838/posts an idiot for not locking his doors, leaving his garage open, and leaving the keys in his ignition.]]
* Creator/MichaelMoore also did this in ''Film/BowlingForColumbine'', in Toronto, just to show off the difference between how Americans and Canadians behave in regards to home security. It's not really true of course, in most parts of Toronto you would still be a huge idiot to leave anything unlocked.
* In the town of Churchill (Manitoba, Canada), it is considered common courtesy to leave your house door and car door unlocked, just in case a stranger needs a place to hide from a ''[[EverythingIsWorseWithBears rampaging polar bear]]''. Car theft is not considered a problem as the town has no roads linking to the rest of Canada.
[[/folder]]

* MichaelMoore also did this in ''Film/BowlingForColumbine'', in Toronto, just to show off the difference between how Americans and Canadians behave in regards to home security. It's not really true of course, in most parts of Toronto you would still be a huge idiot to leave anything unlocked.

* MichaelMoore also did this in ''Film/BowlingForColumbine'', in Toronto, just to show off the difference between how Americans and Canadians behave in regards to home security.

* Happens all the time in {{Kannagi}}. The protagonist stopped locking his door after Nagi got to live with him (instead of, you know, giving her spare keys), and didn't lock the door when they both were inside as well. If people are ringing the bell at all, it is just that they are polite.

* Door locks are nonexistent in ''ToLoveRu''. None. Zilch. Nada. Not on bedroom doors, not on the school roof, and definitely not on the washrooms, which results in many AccidentalPervert situations in the name of {{Fanservice}} and Rito getting the crap kicked out of him by pissed-off girls.

* Parodied in ''NotAnotherTeenMovie'':

* ''LittleWomen'': Aunt March frequently barges in, [[HypocriticalHumor complaining about how her family doesn't lock their door.]]

* Virtually any American SitCom, particularly noticeable in ''{{Friends}}''. This tendency is {{Lampshaded}} in ''{{Coupling}}'' season 4.
** It was lampshaded a few times in ''{{Friends}}'' too: when Monica and Chandler agree to move in together, Monica tells him to lock the door to her apartment, then unlock it again for the first time as her roommate. Chandler replies: "The door hasn't been locked in five years, but sure." Then in the final episode, Monica and Chandler leave their keys on the counter as they leave the apartment... and then so do all the others.

->''"Jane, we've '''talked''' about this! You can't keep walking into our flat uninvited -- [[ThisIsReality this is not]] [[Series/{{Friends}} an American sitcom!]]"''

* In one MaiHime Shizuru/Natsuki fan comic, Shizuru lets herself into Natsuki's unlocked room while she's asleep, and Natsuki finds her sitting across her table from her when she wakes up. Shizuru chides her for leaving her door unlocked, apparently from being tired from all the make-up work she's been doing, and Natsuki promises to be more careful in the future, but notes that no one out there is more "dangerous" than Shizuru.
* The ''VisualNovel/KatawaShoujo'' fic [[http://ks.renai.us/viewtopic.php?f=52&t=2708#p45716 From Shizune's Perspective]] has an example in which the intruder is also the one who forgot to lock her door. Shizune walks into her own unlocked room to find Misha and Hisao [[spoiler:having sex with each other; Shizune had no idea that they were in a relationship at all]].

->''Jane, we've '''talked''' about this! You can't keep walking into our flat uninvited -- [[ThisIsReality this is not]] [[Series/{{Friends}} an American sitcom!]]''

* The KatawaShoujo fic [[http://ks.renai.us/viewtopic.php?f=52&t=2708#p45716 From Shizune's Perspective]] has an example in which the intruder is also the one who forgot to lock her door. Shizune walks into her own unlocked room to find Misha and Hisao [[spoiler:having sex with each other; Shizune had no idea that they were in a relationship at all]].

* In TeenTitansGo, Robin left the door open while cave-sitting the Batcave while Batman was out, and the remaining Titans just waltzed on in.

--> '''Dr. Weird:''' (Standing in front of a gaping hole in the wall) "Who could have penetrated my impenetrable fortress?"
* Done in ''Franchise/WinnieThePooh''. The titular Pooh has set up an elaborate, if hasty furniture barricade in front of his Front door and is patrolling it with a popgun rifle. He hears a knock and is nervously trying to ascertain the identities of his friends knocking at the door, when Tigger bounces the bear, with Rabbit and Piglet walking in behind.
--> '''Pooh''': How did you get past my Hunny-napper traps?
--> '''Rabbit''': Your back door was open.
--> '''Pooh''': Oh!

* {{Lampshaded}} in ''WesternAnimation/{{Ben 10 Alien Force}}'' once when Kevin just shows up in Ben's room.
-->'''Ben:''' How'd you get in here?
-->'''Kevin:''' [[ExtraOreDinary The usual way.]] By the way, you might wanna fix that hole I punched in your door.
-->'''Ben:''' [[ThereWasADoor You could have knocked!]]
-->'''Kevin:''' I sorta did.

* ''TheOutsiders'': Ponyboy explains that he and his brothers always leave their door open since you never know when a friend might need a place to crash, and they are rarely surprised to wake up and find some random gang member sleeping on their couch, or even a rival gang leader reading a newspaper while sitting in their chair, having already made breakfast.