History Main / ThisIsMySide

* ''Literature/FireAndBlood:'' During the Dance of the Dragons, Queen Alicent Hightower suggests doing this on a country-wide scale to Rhaenrya. The side loyal to her son Aegon II get one half, Rhaenrya and her side gets another. Note that Alicent is imprisoned at the time, and her son missing, and the entire country is in the middle of a civil war, and that Alicent doesn't seem to consider the opinions of the various lords fighting on either side, or that neither Aegon or Rhaenrya might want to settle for anything less than the entire country. Rhaenrya rejects the idea.

* ''Manga/HimoutoUmaruChan'' has this happen in one chapter, except that anger[=/=]hate isn't a factor[[note]]Taihei was a little annoyed about Umaru bugging him to play while he was working at his PC, but that's about it[[/note]]. Taihei suggests dividing the apartment in half using a curtain; Umaru likes the idea at first since it's like having her own place, and Taihei thinks it'll improve his productivity. However, it doesn't even take a full day before the two siblings start to miss each others' presence and decide to do away with the curtain.

* ''Anime/StrikeWitches'' has "The [[HistoricalInjoke Seigfried]] [[http://en.wikipedia.org/wiki/Siegfried_Line Line]]", separating Barkhorns perfectly ordered half of the room from Hartmanns [[TrashOfTheTitans junk heap]].

* In ''[[http://www.fanfiction.net/s/8730465/5/C-est-La-Vie C'est La Vie]]'', an alternate universe Literature/HarryPotter is such a JerkAss that the Gryffindor boys' dorm was split down the middle "on the first night of the first week of the first month of our first year here," as Neville puts it.

* In ''[[https://www.fanfiction.net/s/11495123/4/Finding-a-Family Finding a Family]]'', Harry reorganizes the Gryffindor boys' dorm so Ron is on one side of the line and the rest of the boys are on the other.
* In ''[[https://www.fanfiction.net/s/11191235/68/Harry-Potter-and-the-Prince-of-Slytherin Harry Potter and the Prince of Slytherin]]'', after Harry's twin brother Jim is revealed to be a Parselmouth, some anonymous soul splits the Gryffindor boys' dorm with a conjured brick wall so he and Neville are on one side with the rest of the boys on the other.

* A rare serious example occurs in Creator/RupertGrint's ''Film/IntoTheWhite'', a UsefulNotes/WorldWarII film with an EnemyMine plot. See it in [[https://www.youtube.com/watch?v=r3FZNHumVCs the trailer]].

* This PSA from College Humor [[https://www.youtube.com/watch?v=IpCxZUrjImY pretty much sums it up]].

** North and South Cyprus. The line also cuts the capital, [[http://news.bbc.co.uk/2/hi/europe/7343103.stm Nicosia]], in half.

* Episode 11 of ''Machinima/FreemansMind'' references this. After he hops over a laser tripwire, a Vortigaunt spawns on the other side of it. After killing it, he shouts:
-->'''Gordon:''' Stay on your side of the line! My roommate in college used to do the same thing. Your side is the one where everyone is dead and there are no exits. My side is the one filled with hope, love and submachine guns.

* ''Machinima/RedVsBlueTheChorusTrilogy'': Sarge divides Red Base down the middle, forcing Simmons and Grif to share a room. Simmons in particular is less than pleased.

* In ''Series/OneTreeHill'', Lucas and Peyton get into a fight and decide to use masking tape to divide the house in two with the "no-cross" rule in effect. This cuts off Peyton's access to the kitchen appliances and the house's circuit breakers and Lucas' access to the bathroom and the front and back door.

* In an episode of ''WesternAnimation/JohnnyBravo'', Johnny and Carl move into Pops' old trailer parked on the edge of a cliff and Johnny draws a line in the middle after Carl keeps bothering him while he's trying to watch TV. The two of them end up fighting over the remote, with Johnny failing several times to sneak onto Carl's side, only for the trailer to go over the cliff and land in Pops' diner.

* Israeli author Ephraim Sidon presents a particularly extreme version of the trope in his children's book, ''Uzu and Muzu from Kakaruzu''. The titular Uzu and Muzu are brothers who share an extremely strong bond well through adulthood, until they have a petty fight over the correct way to cross one's leg. After the fight escalates to violence, the brothers build a huge wall in the middle of their house and never speak to each other again. The wall remains in place for generations, to the point where the original connection between the families on either side of the wall is completely forgotten, not to mention the reason for the fight.

* ''Manga/ShonanJunaiGumi'': When Ryuji stays with Eikichi for a while after his dad disowns him, Eikichi tries to make him stay in a closet at first. Eikichi's mom makes a dividing line through his room, giving Ryuji the half with the bed.

[[folder:Web Comics]]

* On ''WesternAnimation/{{Jimmy Two Shoes}}'', when Lucius and Jimmy are trapped on a FarSideIsland, Lucius does this, trapping Jimmy on a very small "half". Being [[ThePollyanna Jimmy]], he's flattered that Lucius gives him half.

* In the ''WesternAnimation/DCNation'' ''WesternAnimation/TeenTitans'' short "Taped Before A Live Studio Audience", Robin and Cyborg get into a major escalating war of this after the two want to do something different on TV, taping everything in half - the tower, a donut, the Titans themselves, The Brain... before they get to another roll of tape [[EarthShatteringKaboom and...]]

** The episode "Men Are Messy", in which Lucy -- fed up with cleaning up after a careless Ricky -- divides their apartment with masking tape and tells him to look after his own half. The kitchen is in Lucy's half, so Ricky can't eat, while the bathroom is in Ricky's half, so Lucy can't bathe.

* In ''[[https://www.fanfiction.net/s/13814352/4/Unprecedented-Competition Unprecedented Competition]]'' the Slytherin first-year boys' dorm is divided because some of them are Christian and some follow the Old Ways.

* In ''[[http://www.fanfiction.net/s/8730465/5/C-est-La-Vie C'est La Vie]]'', an alternate universe Literature/HarryPotter is such a JerkAss that the Gryffindor boys' dorm was split down the middle "on the first night of the first week of the first month of our first year here," as Neville puts it.
* In ''[[https://www.fanfiction.net/s/11495123/4/Finding-a-Family Finding a Family]]'', Harry reorganizes the Gryffindor boys' dorm so Ron is on one side of the line and the rest of the boys are on the other.
* In ''[[https://www.fanfiction.net/s/11191235/68/Harry-Potter-and-the-Prince-of-Slytherin Harry Potter and the Prince of Slytherin]]'', after Harry's twin brother Jim is revealed to be a Parselmouth, some anonymous soul splits the Gryffindor boys' dorm with a conjured brick wall so he and Neville are on one side with the rest of the boys on the other.

* In ''[[https://www.fanfiction.net/s/13554962/2/Cheating-Death Cheating Death]]'' Harry makes James and Albus share a room so a recuperating Sirius can have someplace to stay and James is deeply unhappy about it. After he pushes Albus out of his bed, Ginny paints a line down the middle of it and tells the boys to stay on their own sides.

* ''WesternAnimation/StevenUniverse'': In "Barn Mates", this is Steven's solution when Lapis feels her living with Peridot in a large barn isn't going to work out. [[LampshadeHanging He notes that he's seen this on TV before, though never got to see how it worked out]].

* ''Anime/DarlingInTheFranxx'' combines this with a battle of the sexes; after the boys of Squad 13 accidentally see the girls semi-naked, the girls tape off half of their shared living quarters, leading to a goofy passive-aggressive escalation that quickly gets out of control. By the way, did we mention this show is about giant mecha?

* On ''WesternAnimation/{{Madagascar}}'', Alex draws a line on the beach to divide the island between Marty, who likes being out in the wild, and the others, who want to go back to New York. Marty calls his side the "fun side", to which Alex responds, "You're in the [[PlaceWorseThanDeath Jersey]] side of this cesspool!"

* In ''VideoGame/FireEmblemGaiden'', the warring sibling gods Duma and Mila divided Valentia into halves- Duma established the empire of Rigel in the north, while Mila established the kingdom of Zofia in the south.
* As pointed out in WebAnimation/LoreInAMinute, this is how [[VideoGame/FireEmblemGaiden Mila and Duma]] solved their debate on how the continent of Valentia should be ruled, by dividing it in two (remember, they're siblings).
* Was supposed to be referenced in ''VideoGame/{{Portal}}'', in the final battle, before the line may have been DummiedOut: An increasingly desperate [=GLaDOS=] offers to take a laser and inscribe a line right down the side of the entire research facility, and each of you can have a half, if that'll get you to stop hitting her with rockets.

* The cherubs do this in ''Webcomic/{{Homestuck}}''. Not with a line, because since they're a SplitPersonality there's no way to ensure the other respects it, but with leg irons that stretch a bit over half way across the room, and that only the personality that puts them on can unlock. The zone reached by both chains is neutral territory.

* In ''{{WesternAnimation/Arthur}}'', a babysitter did this to try to stop Arthur and D.W. from fighting. It didn't work, as the two soon begin fighting over a jacket draped over the tape line.

* An Al Brodax ''ComicStrip/{{Popeye}}'' cartoon had Popeye and Brutus running a hotel. Popeye wants the hotel to emphasize good food while Brutus wants to emphasize great entertainment. Popeye paints a line through half the hotel, telling Brutus to run his half his way and Popeye will run ''his'' half ''his'' way. It's all mutual until their first guest, Olive Oyl, arrives. The two start sabotaging each other's emphasis in trying to appease Olive.

** In one episode, the townsfolk enter a huge argument with themselves over the Iraq war. They eventually decide to split the town into what Skeeter calls the "Pro-War side" and the "Unpatriotic side" (to which Randy responds they should call the Anti-War side the "Rational side" and the Pro-War side the "Redneck side"). Very quickly they realize the flaw in their plan as the town only has one school, post office, grocery store, etc. Eventually, they make a realization that they're behaving foolishly:

* This is ''WesternAnimation/StevenUniverse''[='s=] solution when Lapis feels her living with Peridot in a large barn isn't going to work out. [[LampshadeHanging He notes that he's seen this on TV before, though never got to see how it worked out]].
* ''Series/TheSuperMarioBrosSuperShow'': Luigi does this to Mario in "A Basement Divied".

** The Peace Lines in Belfast, Northern Ireland

Related to ThisIsMyChair, which is usually a throwaway gag. See also PropertyLine, which is the same plot on a larger scale. TruthInTelevision, as those who have ever had an argument with a sibling, roommate, or Soviet Bloc can attest to.

* Suiseiseki in ''Manga/RozenMaiden'', who initially dislikes Jun, draws an obviously biased one in his room.

* In ''Manga/CherryJuice'', a NotBloodSiblings brother and sister have to share a room when their grandmother moves into the house after suffering a hip injury.
* ''Manga/BlackButler'': William does this in the manga to Sebastian when forced to share a room during the Circus arc. Enforces it with gusto when Ciel encroaches on his space by 3 cm.
* Happened once in ''Anime/{{Pokemon}}'' where [[FieryRedhead Jessie and Misty]] fell onto a small rock ledge on a cliff together. Misty draws a line on the rock to give each of them a side while they wait for rescue. Her side is much larger than Jessie's.

* ''Manga/HimoutoUmaruChan'' has this happen in one chapter, except that anger[=/=]hate isn't a factor[[note]]Taihei was a little annoyed about Umaru bugging him to play while he was working at his PC, but that's about it[[/note]]. Taihei suggests dividing the apartment in half using a curtain; Umaru likes the idea at first since it's like having her own place, and Taihei thinks it'll improve his productivity. However, it doesn't even take a full day before the two siblings start to miss each others' presence and decide to do away with the curtain.
* ''Anime/DarlingInTheFranxx'' combines this with a battle of the sexes; after the boys of Squad 13 accidentally see the girls semi-naked, the girls tape off half of their shared living quarters, leading to a goofy passive-aggressive escalation that quickly gets out of control. By the way, did we mention this show is about giant mecha?
* {{Subverted}} in ''Manga/AsteroidInLove''. As Mari recalls the early days when the Astronomy and Geology clubs were merged due to administrative fiat--both are {{Club Stub}}s and involves in the same broad category of subjects--into the Earth Sciences Club. She (formerly of Astronomy) originally sees Mikage's (formerly of Geology) decision to divide the newly merged club into Geology and Astronomy groups as this, since she notices quite a bit of unfriendliness from Mikage. In hindsight, however, she sees it as a practical concern since the activities of the two former clubs were too different, and it's hard to manage without dividing it that way--it's just Mikage is being {{Tsundere}} about it.
* The seventh episode of ''Anime/KiraKiraHappyHirakeCocotama'' has two sisters get into a squabble over having to share their room, with the elder sister at one point using tape to separate her side of the room from her younger sister's side.

* ''WesternAnimation/TheBraveLittleToaster'', Radio makes a clear demarcation of his sleeping space. When Blankie attempts to snuggle with him, Radio furiously reminds him of it.

* In ''Film/TheWarOfTheRoses'', the divorcing couple divides their BigFancyHouse in two parts. The kitchen has a specific time table.

* A rare serious example occurs in Creator/RupertGrint's ''Film/IntoTheWhite'', a UsefulNotes/WorldWarII film with an EnemyMine plot. See it in [[https://www.youtube.com/watch?v=r3FZNHumVCs the trailer]].
* In ''Film/ScoobyDooCurseOfTheLakeMonster'', Scooby paints a line down the middle of the room he shares with Shaggy following an argument over Shaggy's date with Velma.

* The {{UST}} couple in ''Film/ItHappenedOneNight'' spend the movie hanging a blanket (dubbed the Wall of Jericho) between the beds in their hotel/motel rooms for privacy.
* ''Film/IntoTheForest'': After a fight, Eva staples a curtain over all the windows in her side of the house and refuses to interact with Nell.
* In ''Film/{{Gunless}}'', the general storekeepers Claude and Carl have split their store in half following a disagreement about selling liquor.

* In ''The Disappearance Of Sister Perfect'', the title character divides her and her sister's bedroom in two by gluing a line of hair ribbons to the floor.
* The page image comes from the children's book ''Literature/TheBerenstainBears Get in a Fight''. Because [[FeudEpisode they both woke up in a foul mood and are having a bitter argument]], Brother and Sister divide their treehouse in half.
* There's a children's ''Franchise/StarTrek'' book where Worf and his roommate at the Academy do this.
* In ''Literature/MySistersKeeper'', Kate and Anna did this at one point as children. Kate graciously allowed Anna to choose the side with all of her favorite toys on it, then smiled smugly as she left, since hers was the only side with a door.
* In Creator/PamelaDean's ''Tam Lin'', one of the older students tells Janet that last year she and her roommate had to set up a clothesline with sheets in the middle of the room, and the roommate would go out through the window because the door wasn't on her side.
* ''Literature/FireAndBlood:'' During the Dance of the Dragons, Queen Alicent Hightower suggests doing this on a country-wide scale to Rhaenrya. The side loyal to her son Aegon II get one half, Rhaenrya and her side gets another. Note that Alicent is imprisoned at the time, and her son missing, and the entire country is in the middle of a civil war, and that Alicent doesn't seem to consider the opinions of the various lords fighting on either side, or that neither Aegon or Rhaenrya might want to settle for anything less than the entire country. Rhaenrya rejects the idea.
* Israeli author Ephraim Sidon presents a particularly extreme version of the trope in his children's book, ''Uzu and Muzu from Kakaruzu''. The titular Uzu and Muzu are brothers who share an extremely strong bond well through adulthood, until they have a petty fight over the correct way to cross one's leg. After the fight escalates to violence, the brothers build a huge wall in the middle of their house and never speak to each other again. The wall remains in place for generations, to the point where the original connection between the families on either side of the wall is completely forgotten, not to mention the reason for the fight.

* ''Series/ILoveLucy'':
** The episode "Men Are Messy", in which Lucy -- fed up with cleaning up after a careless Ricky -- divides their apartment with masking tape and tells him to look after his own half. The kitchen is in Lucy's half, so Ricky can't eat, while the bathroom is in Ricky's half, so Lucy can't bathe.
** Another episode finds the Ricardos and Mertzes running a diner together. When an argument erupts over which couple should greet guests and which should work in the kitchen, a dividing line of this sort is placed in the middle of the establishment (and across the middle counter stool). It gets more interesting when their sole customer decides to sit on that middle stool, and both couples outdo themselves trying to serve him.
* Variant: in ''Series/WKRPInCincinnati,'' Les Nessman, believing that he deserved an office of his own, used masking tape to mark off an area on the floor of the newsroom around his desk which he claimed to be his "office", and demanded that people "knock on the door" and request entry before crossing the taped line to approach his desk.

* In ''Series/MarriedWithChildren'', Al Bundy takes a vacation without leaving home, by cordoning off the couch area, ignoring everything going on in the rest of the house, and faking it. "I'm sorry, the captain's turned on the 'No Peg' sign."
* In ''Series/HappyDays,'' Ralph and Potsie acted on the bad advice secretly written by Richie in an advice column about dividing their apartment. This creates a war of sides where each has the entirety of a necessary part of the apartment (Ralph = kitchen, Potsie = bathroom). Eventually, the resulting fight gets so bad that when Richie tries to resolve the situation, he has to make them all stand on the line itself as neutral territory like tightrope walkers, only to have Fonz come and note to the bizarre sight, "And you're doing it without a net."

* In one episode of ''Series/DropTheDeadDonkey'', Henry and Sally have to share a desk and get into an argument about each keeping to their own side. As the episode goes on the argument takes an increasingly militaristic tone with disputes about how one of them has made excursions into the agreed-upon neutral zone in the middle of the desk. In the end, Helen removes their desk entirely and puts two kiddie tables in its place.
* ''Series/TheXFiles'': In "Never Again" Scully complains that she has to share Mulder's desk. Mulder responds that there's no room in their cramped basement for two desks anyway. Scully is pissed off at this and continues to remain so throughout the episode, engaging in a number of OutOfCharacter behaviors like getting a tattoo. At the end of the episode Mulder says, "I don't understand...all this over a desk?" Scully just replies: "Not everything is about you, Mulder." [[spoiler:The truth is Scully had just discovered she had cancer and is keeping it from Mulder.]]

* A four-way version happened on ''Series/TheMonkees'' when the four boys were fighting over a girl. The show played with it, noting that each would have access to only one particular vital part of the apartment. Davy's side had the front door, implying he was the only one with the ability to come and go; however, he "would gladly trade Mike for the bathroom right away". Moments later, the whole arrangement is quickly forgotten when a show comes on TV that they want to see and everyone rushes to Peter's side (which contains the television set).
* The ''Series/{{MASH}}'' episode "The Billfold Syndrome" has Charles section off the Swamp between himself and Hawkeye and BJ.
* Happened in one episode of ''Series/GilligansIsland'' between Gilligan and the Skipper.
* ''Series/MyTalkShow'': Guest William Shatner takes over one section of the house/set and declares it Canadian territory.
* ''Series/TheBennyHillShow'': In a sketch, Russian and American sides of an unnamed European Country[[note]]pretty obviously Germany[[/note]] are decided after years of negotiation -- down the center of the bedroom of a pair of newlyweds. A painter paints a line down the wall and on the floor. Suddenly the husband (on the American side) needs a passport to visit his wife (on the Russian side).
-->'''Official:''' Is the purpose of your visit business or pleasure?\\
'''Benny:''' Business.\\
'''Wife:''' I think he means pleasure.\\
'''Benny:''' You'll find ''I mean business''.
* ''Series/DrakeAndJosh'' have done it at least once.

* In an episode of ''Series/DadsArmy'', Hodges and Mainwaring have to share and office and Hodges attempts to draw a line down the middle of the desk in chalk, which Mainwaring keeps rubbing off.
* Alexia does this in the ''Series/{{Pixelface}}'' episode "High Spirits" when the others get angry at her for taking their stuff with permission. She divides the console in half, with her on one side and everyone else on the other.
* In ''Series/LifeWithDerek'', when Derek and Casey's family went on a road trip, Casey divided the house with pink and blue tape so that she and Derek could avoid each other.
* ''Series/FullHouse'': D.J. divided the room she shared with her younger sister Stephanie. Too bad Stephanie's half didn't have access to the door.
* In ''Series/OneTreeHill'', Lucas and Peyton get into a fight and decide to use masking tape to divide the house in two with the "no-cross" rule in effect. This cuts off Peyton's access to the kitchen appliances and the house's circuit breakers and Lucas' access to the bathroom and the front and back door.
* Joey and Parker in ''Series/LivAndMaddie'' find it difficult sharing a bedroom so they decide to divide the room in two. Parker claims the lower half, and insists that Joey can't set foot on "his" floor. Joey gets round it with a system of ropes and pulleys to move back and forth, and sets up in the top half, insisting that Parker crouch down to avoid invading Joey's space.
* An episode of ''Series/CSIMiami'' was the investigation of a murder in the house of a couple that was undergoing a pretty bitter divorce (and the ensuing DivorceAssetsConflict going wrong in many ways). The very first thing that the police noticed when they went in was that the couple had divided their house in two with a laser grid that would immediately trigger an alarm if somebody crossed it as a reminder to stay on their side.
-->'''Horatio Caine''': And this is how divorce... goes high-tech.
* On ''Series/MyNameIsEarl'', Earl is married to Billie in [[HappyPlace a coma fantasy]] based on the {{Dom Com}}s he watched during childhood. During the ClipShow at the end of the coma, Earl reminisces about their first fight, which involved dividing the house in half.
* ''Series/HeyDude'' featured an episode in which bunkmates Brad and Melody fought over the latter's fondness for loud music and exercising, leading Melody to "solve" the problem by putting up a blanket as a dividing line, and then blasting her stereo, as she could do as she pleased on her side. However, the outlet into which her stereo was plugged was on Brad's side...
* In ''Series/MustangsFC'', Marnie and Lara use tape to divide their shared room in half. The episode where they decide to take it down marks a major piece of CharacterDevelopment.
* In [[https://www.youtube.com/watch?v=fKN_f5rQ_Zc one call]] on ''Series/LivePD'', a separated couple divides their house in half and one of them lives on either side. The police are regularly called when the boundary is violated.

* In "Team Fort" from ''Series/ThePajanimals'', this is done with the bathroom sink after an argument over borrowed blankets and pillows.

* Was supposed to be referenced in ''VideoGame/{{Portal}}'', in the final battle, before the line may have been DummiedOut: An increasingly desperate [=GLaDOS=] offers to take a laser and inscribe a line right down the side of the entire research facility, and each of you can have a half, if that'll get you to stop hitting her with rockets.

* As pointed out in WebAnimation/LoreInAMinute, this is how [[VideoGame/FireEmblemGaiden Mila and Duma]] solved their debate on how the continent of Valentia should be ruled, by dividing it in two (remember, they're siblings).
* In ''VideoGame/FireEmblemGaiden'', the warring sibling gods Duma and Mila divided Valentia into halves- Duma established the empire of Rigel in the north, while Mila established the kingdom of Zofia in the south.

* Occurred once in ''Webcomic/IrregularWebcomic''... in an infinite featureless void.

* The cherubs do this in ''Webcomic/{{Homestuck}}''. Not with a line, because since they're a SplitPersonality there's no way to ensure the other respects it, but with leg irons that stretch a bit over half way across the room, and that only the personality that puts them on can unlock. The zone reached by both chains is neutral territory.
* Becky does this in ''Webcomic/DumbingOfAge'' when she's sharing a room with Dorothy whom she insists on seeing as her nemesis:
-->'''Becky''': 'Kay, Dotty, I'm gonna run this maskin' tape down the middle of the room so we know who's side is who's.\\
'''Dorothy''': Huh, do you think that cliche has wrapped back around to being funny, yet?\\
'''Becky''': ''Is'' that a tired cliche? I'm ''sorry'', my late parents didn't allow me to watch television.

* In an episode of ''WesternAnimation/JohnnyBravo'', Johnny and Carl move into Pops' old trailer parked on the edge of a cliff and Johnny draws a line in the middle after Carl keeps bothering him while he's trying to watch TV. The two of them end up fighting over the remote, with Johnny failing several times to sneak onto Carl's side, only for the trailer to go over the cliff and land in Pops' diner.

* ''WesternAnimation/TheSimpsons'':
** Subverted when Homer begins to draw a line across the house "à la ''I Love Lucy''" after a fight with Marge, but instead draws himself into a tiny corner of the bedroom.
** Mentioned in passing by Principal Skinner, when he says that his mother put cardboard over her half of the TV screen.
** In one episode, Lisa and Bart are fighting over being able to sit on a certain part of the carpet.
--->'''Bart:''' Hey, I was sitting there!\\
'''Lisa:''' I don't see your name on it.\\
'''Bart:''' It's right there! ''(The camera pans down to Bart's name scrawled on the carpet.)''\\
'''Marge:''' Bart, don't write on the carpet!

* In ''{{WesternAnimation/Arthur}}'', a babysitter did this to try to stop Arthur and D.W. from fighting. It didn't work, as the two soon begin fighting over a jacket draped over the tape line.

* The first episode of ''WesternAnimation/{{Bonkers}}'' has Lucky trying to divide up his and Bonkers' office this way.

* ''WesternAnimation/SouthPark'':
** In one episode, the townsfolk enter a huge argument with themselves over the Iraq war. They eventually decide to split the town into what Skeeter calls the "Pro-War side" and the "Unpatriotic side" (to which Randy responds they should call the Anti-War side the "Rational side" and the Pro-War side the "Redneck side"). Very quickly they realize the flaw in their plan as the town only has one school, post office, grocery store, etc. Eventually, they make a realization that they're behaving foolishly:
--->'''Skeeter:''' Hey everybody, this is never going to work. Don't you see? All this dividin' up the town, it's just ridiculous. What we really should be doing, is just beatin' the hell out of each other like we were.\\
'''Randy:''' He's right. Boy, do I feel like a fool.\\
''[both sides instantly revert to their usual behavior and begin a mass brawl]''
** An episode uses a sinister variation of the trope. Two visitors from out of town come across South Park, but find it devoid of adults because the kids had the vast majority falsely arrested for "molestering" them and the remaining adults moved away for fear of being arrested. Run by kids, the town has fractured into two units; the area now known as Treasure Cove is apparently led by Stan and occupies the poor side of town, whereas Cartman has seized control of the wealthy side of town and renamed it Smiley Town. Aside from the fact Cartman as dictator is scary enough (add to that the fact only one phone has survived in the entirety of South Park, effectively cutting off communication with the outside world), both sides have an agreement where they essentially play CaptureTheFlag with a book from the opposing side- whichever side doesn't have a book by [[RaceAgainstTheClock 8:00pm]] must sacrifice one of its number to "The Provider" (in reality, the town's statue of John Elway with a faulty electrical cord nearby rendering it a DeathTrap). It's only through the outsiders' interference that the kids are prevented from killing everyone in town and the adults are allowed to return.
* In ''Tigger and Pooh and a Musical Too'', a movie from ''[[Franchise/WinnieThePooh My Friends Tigger & Pooh]]'', Tigger and Rabbit did this with ''the entire Hundred Acre Wood'', drawing up a big white line across the entire Wood and declaring themselves mayors of their respective sides.
* Happened in an episode of ''WesternAnimation/KaBlam'' where June is laughing at Henry for getting his shirt caught in his pants zipper. Henry is angered by this, and makes June stay on her side of the (comic) panel, and he'll stay on his. Unfortunately for Henry, June throws a huge party on her side.
* ''WesternAnimation/ThePenguinsOfMadagascar'', "All King, No Kingdom": King Julien divides the lemur habitat in half, one side for Maurice and Mort, the other for himself. Naturally, Julien's "half" occupies most of the habitat. Maurice and Mort then throw a party and invite all the animals in the zoo, except for Julien, who starts going crazy with loneliness.

* In ''WesternAnimation/AngelinaBallerina: The Next Steps'', Angelina and Marco did this with a poster after they were assigned to work together. Marco didn't want frills and a tutu on his poster, while Angelina couldn't abide by the idea of having soccer balls in the poster. It didn't work work out, and they went through a couple of other hangups, before finally hitting on a working idea.
* On ''WesternAnimation/CatDog'', Cat and Dog once took this to the extreme by physically sawing all their possessions in half, including their house.
* One episode of ''WesternAnimation/{{Catscratch}}'' involved this. Like every other misadventure on this show, things took a turn for the extreme, resulting in a full-blown war for territory.
* On ''WesternAnimation/AmericanDad'', Stan and Francine draw a line across the house after a fight over remodeling the kitchen. It's an InvokedTrope, as Stan comments he saw it on ''Series/TheBradyBunch''. Eventually they build a wall across the middle of the house and a TimePassesMontage shows the family celebrating holidays on Stan's and Francine's side. (It turns out they celebrated all those holidays in one week to make each other feel bad.)
* ''WesternAnimation/TheSmurfs'':
** In the episode "Romeo and Smurfette," Papa Smurf has Brainy divide the village like this when Gargamel starts a dangerous Smurfette/Handy vs. Smurfette/Hefty [[ShipToShipCombat Ship War]]. Seriously.
** The village was divided again in this fashion in the cartoon special "The Smurfic Games" to separate the Smurfs into two teams...only for the line to be painted right over Clumsy and his house!
* In the animated ''WesternAnimation/BackToTheFuture'', the kids' room is divided by a red line with "KEEP OUT!" written on each side. Note that unlike most other examples, this is the default state, rather than a one-time thing.

* Happened in a ''WesternAnimation/TimeSquad'' episode when Tuddrussel and Larry were extra angry at each other: they divide the satellite in two, declare their own side off limits to the other and decide to take a trip to the gun range and kitchen respectively...then they realize that the former is on ''Larry's'' side in the latter on ''Tuddrussel's'' side. Not wanting to switch, they up trying the others hobby out of boredom, then make up with an added appreciation for each other...[[SnapBack until the end of the episode]].
* In ''WesternAnimation/TheTick'', [[BlobMonster Thrakkorzog]], [[EvilOverlord ruler]] of dimensio-err... ''Apartment'' 14-B, has this relationship with his (perfectly normal human) room-mate.
-->'''Thrakkorzog:''' How many times must I tell you: Don't touch my stuff! This is ''my'' side of the living room, and that is ''your'' side of the living room. And, ''must'' you [[ArsonMurderAndJaywalking drink straight from the milk carton? It's disgusting!]]
* ''WesternAnimation/TazMania'': In "Unhappy Together", an argument between the Platypus Brothers ends with them cutting their house in half.
* In the ''WesternAnimation/DCNation'' ''WesternAnimation/TeenTitans'' short "Taped Before A Live Studio Audience", Robin and Cyborg get into a major escalating war of this after the two want to do something different on TV, taping everything in half - the tower, a donut, the Titans themselves, The Brain... before they get to another roll of tape [[EarthShatteringKaboom and...]]
-->'''Cyborg:''' You can't [[RealityBreakingParadox divide tape with tape!]] You created a paradox!\\
'''Robin:''' [[NoYou No, YOU did!]]
* Caillou, in a fifth season episode of ''WesternAnimation/{{Caillou}}'' with his and Rosie's playroom, when Rosie accidentally scratches his bike and he decides that she can't be trusted with any of his stuff.
* In the ''WesternAnimation/LittlestPetShop2012'' episode "[[Recap/LittlestPetShop2012S1E24Frenemies Frenemies]]," Pepper and Zoe divide the day camp room with a thick red line down the middle to keep each other's parties separate.
* In ''WesternAnimation/DanVs'' episode "The Ski Trip", Dan and Elise get SnowedIn a cabin together, so Dan divides the cabin in half, going so for as to declare his side Dantopia.
* In ''WesternAnimation/{{Sixteen}}'', Nikki and Caitlin split their working sides in the mall in [[Recap/SixteenS2E4FishAndMakeUp "Fish And Make Up"]]. [[PottyEmergency This ends up causing problems for the latter later on,]] [[BrickJoke due to the washrooms being on the former's side of the mall.]]
* Mr. Pteranodon does this in "New Neighbors" from ''WesternAnimation/DinosaurTrain'' when the lambeosaurs move in start eating all the leaves off the oak trees.
-->'''Mr. Pteranodon:''' See this line? Ha! Well, these are my trees. You cannot eat them. This side is Pteranodon Terrace! Okay?! Come on, kids.
* In "Pig Trouble" on ''WesternAnimation/GoldieAndBear'', TheBigBadWolf ("Big Bad") blows down the pigs' straw and stick houses, in the hope that if they're all forced to be together in the brick house, they'll [[FeudEpisode make up and stop arguing.]] Instead, they just split the interior of the brick house three ways.
* This is ''WesternAnimation/StevenUniverse''[='s=] solution when Lapis feels her living with Peridot in a large barn isn't going to work out. [[LampshadeHanging He notes that he's seen this on TV before, though never got to see how it worked out]].

* The 2017 ''[[WesternAnimation/DuckTales2017 DuckTales]]'' series shows that at least one room in the Duckburg Billionaires' Club is divided into 2 halves with a line down the middle for members Flintheart Glomgold and Scrooge [=McDuck=]. Each half has a giant portrait of that half's owner on the wall, [[ColorCodedForYourConvenience Scrooge's half is mostly red while Glomgold's half is mostly blue and green]], and Glomgold keeps a [[SharkPool shark]] he likes using in his {{Evil Plan}}s on his side.
* ''WesternAnimation/HouseOfMouse'': In "Chip 'n Dale", Mickey, accusing Donald of causing trouble, tells him not to leave the lobby for the rest of the show and has [[WesternAnimation/AliceInWonderland a pencil-bird]] draw a line dividing the lobby and theater. Donald later goes past the line by [[LoopholeAbuse physically lifting it up and going under it]].
* In the ''WesternAnimation/MuppetBabies2018'' episode, "A Backyard Divided", when Gonzo and Piggy get into a feud, they divide the backyard into two separate halves, and since they're pretending the backyard is a medieval setting, they imagine their halves are are kingdoms. The feud only grows stronger when Piggy's magic wand is on Gonzo's side, and Gonzo's soccer ball is on Piggy's side. Later in the episode, Kermit, Summer, Fozzie, and Animal demand their own kingdoms, dividing the backyard into sixths.
* ''Eddy & The Bear'': The titular characters do this with the woods during [[FeudEpisode "Kings for a Day"]].
* In the ''WesternAnimation/SpongeBobSquarePants'' episode "Pineapple Fever", Squidward does this when he is stuck at [=SpongeBob's=] house during a storm. It backfires on him when he has to go to the kitchen for some food, and [=SpongeBob=], dressed as a security guard, restricts him from crossing the line.

* "The Green Line" was a ''WesternAnimation/MightyMouse'' cartoon that had a section of a town divided by said line, half populated by mice and the other by cats. Both are sworn to never cross the line which is honored fully until a demon cat persuades a cat to cross it anyway. He does, and the agreement becomes horribly violated as the cats chase the mice, who use warfare to protect themselves. Mighty Mouse flies in to fight the demon cat. The hero wins, naturally, to the cheers of both cats and mice who kiss and make up.
* ''WesternAnimation/TotalDrama'': Following the teams merging, Heather and [=LeShawna=] have had it with each other and split the cabin in half with tape. Lindsay sides with Heather while Gwen and newcomer Bridgette (who did not want the girls to have this feud and hoped that they could try to make up with each other) side with [=LeShawna=]. The line is removed in the next episode due to the girls' fear of Eva.

* Music/TheBonzoDogBand's ''[[https://www.youtube.com/watch?v=aolMV0oNCBE My Pink Half of the Drainpipe]]'' is sung from the perspective of a man has painted his half of the drainpipe between his and his neighbour's house pink to distance himself from his neighbour's tedious life and opinions.