[[quoteright:300:[[Disney/LadyAndTheTramp http://static.tvtropes.org/pmwiki/pub/images/Lady-Siamese-Cats-SiAm_5915.jpg]]]]

You've just noticed that your pet is seemingly lonely, so what's the best thing to do? Get a new pet that might be a good friend for the current pet. However, just as soon as you leave the room, the new pet actually turns out to be very troublesome and spoiled, tearing up the rugs and the curtains, spilling milk all over the floor, and knocking over the trash.

When you come back in the room, you become surprised at the mess and become quick to [[NeverMyFault blame the old pet for causing the damage]]. The pet tries to insist that he did not do it, but you don't listen (of course, it helps that the pet isn't usually able to talk). The old pet [[IncrediblyLamePun takes matters in his own paws]] to expose the new pet for the fraud that he is. Once the new pet has been exposed for what he really is, he is immediately disposed of and the old pet is forgiven.

Also, there are some variants of this trope where instead of a pet, it's when a person tries to make friends with another character who also does a lot of misdeeds to get the other in trouble.

Setting aside the anthropomorphic elements, there can be a certain amount of TruthInTelevision to this, as stress and pecking-order issues can cause misbehavior in both the new and existing pets unless the owners are careful about introducing the new arrival.

Compare: BitchInSheepsClothing and ClearMyName.

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!!Examples:

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[[folder: Advertising ]]

* A [[http://www.youtube.com/watch?v=ADP1akHenTk Polaroid]] commercial had a dog who was blamed for getting into the trash, despite the fact that he was the one who didn't do it. The dog then discovers that it was actually the cat who got into the trash and pinned the blame on him, so he uses the Polaroid camera to take pictures of the cat to prove his innocence to his owner.
* [[http://www.youtube.com/watch?v=SSn6FSvqaXY This]] Pepsi commercial had a dog eat his owner's sandwich and drink his Pepsi before making it look like that the cat did it.

[[/folder]]

[[folder: Anime and Manga ]]

* A Johto episode of ''Anime/{{Pokemon}}'' had Ash and friends come across a seemingly cute and innocent Teddiursa, whom they temporarily take under their wing. However, when Ash, Misty, and Brock are not around, Teddiursa is not as innocent as he seems as he frames most of the Pokemon (Totodile, Chikorita, Psyduck, and Bulbasaur) for eating the food, which it actually did itself.

[[/folder]]

[[folder: Comic Books ]]

* The [[ComicBook/DisneyDucksComicUniverse Disney comic]] "Archimede e l'Edidue" is about [[GadgeteerGenius Gyro Gearloose]] constructing a second Little Helper robot, which proceeds to vilely sabotage the original Helper's work to make him look spiteful and careless. Eventually, Gyro [[DeusExMachina just happens to construct an invention which shows what has happened around in the last few hours]] and realizes what was up.

[[/folder]]

[[folder: Film ]]

* A scene in ''Film/CatsAndDogs'' had Mrs. Brody adopt a seemingly cute kitty which Lou the beagle is uncomfortable with, until it is revealed that the kitty was actually an agent for Mr. Tinkles. He immediately frames Lou by using a metal ball containing fake dog poop and dumps it on the floor, leading Mrs. Brody to think that Lou defecated on the floor, when really he did not.
* In ''LadyAndTheTramp'', Aunt Sarah stays to take care of the baby while Lady's owners are away. She brings along her Siamese cats, who quickly get up to mischief. When Sarah comes in and sees the mess -- along with her "innocent little angels" acting hurt -- she blames Lady and puts a muzzle on her. The Siamese cats on the other hand, were both [[KarmaHoudini never seen, heard, or mentioned again after this]].
** Aunt Sarah later does this to Lady's boyfriend Tramp, whom she thinks was attacking a baby, and immediately has him taken away by the dogcatcher (it was the rat that was attacking the baby, Tramp was actually protecting him).
* In ''The Ugly Dachshund'', the dachshunds act like this to the Great Dane, despite him being the "new" pet. After spilling paint, they're even shown cleaning themselves up so their masters won't notice they did it.

[[/folder]]

[[folder: Western Animation ]]

* An episode of ''SpongeBobSquarePants'' had SpongeBob buy another pet as a friend for Gary, but the pet causes a lot of trouble by tormenting Gary, but since Spongebob is an expert of ComicallyMissingThePoint, he thinks that Gary is roughhousing with the pet, even in the end when he blames Gary for all the damage. This is universally considered to be ''the'' worst [=SpongeBob=] episode.
* Used without a new pet in the FostersHomeForImaginaryFriends episode "Everyone Knows It's Bendy". The friend is apparently wrongly blamed for all the misdeeds that he committed at his old creator's home, but once he's been welcomed to Foster's, he actually turns out to be a complete JerkAss who promptly gets Wilt, Eduardo, Coco, and Bloo into various kinds of troubles that he did himself, while still mooching to Mr. Herriman and Frankie under his innocent facade. Like the [=SpongeBob=] example, fans consider it the worst episode of the series ([[CreatorBacklash the crew even apologized for it]], which is why Bendy was never seen again after this).
* ''WesternAnimation/TheRealGhostbusters'' episode "Victor, The Happy Ghost" had the Ghostbusters adopt the ghost (an obviously blatant {{Expy}} of either CasperTheFriendlyGhost or a DrSeuss character), much to Slimer's discomfort. However, Victor is not as innocent as he seems as he causes a lot of trouble for the Ghostbusters; touching one of Egon's inventions, eating the whole box of jelly donuts, closing the hood of Ecto-1 on top of Ray while he was working on the car, etc., leaving Slimer to be blamed for all the misdeeds that Victor did himself.
* In the Creator/TexAvery cartoon "The Cat Who Hated People", the cat is taken home to make friends with the family dog. The dog starts beating him up, but when the lady of the house arrives, he quickly gives the cat an axe, douses himself with ketchup and plays dead, and the poor cat gets the rap.
* In the ''WesternAnimation/TomAndJerry'' short "Tom's Photo Finish", Tom is almost caught raiding the fridge and sets Spike up to take the fall, which gets the poor dog taken outside. Unfortunately for Tom, Jerry has incriminating evidence, and HilarityEnsues as Tom tries to cover it up.
** Another cartoon, "Triplet Trouble", has Mammy Two-Shoes take in three kittens who then make mischief the moment she leaves the room. Tom and Jerry have to [[EnemyMine join forces]] to get even with them.
* In the ''WesternAnimation/LooneyTunes'' short "Hare Force", Bugs Bunny is taken in by an old lady and locks horns with her jealous dog.
* The ''HouseofMouse'' short "Pluto's Kittens", which is about [[PlutothePup Pluto]] being [[SublimeRhyme kicked out of the house]] by MickeyMouse after [[GoodAngelBadAngel his conscience]] persuades him that the poor dog was the troublemaker and not the cat trio.
* In her debut episode in ''{{Rugrats}}'', Fluffy is like this to Spike.
* In an episode of ''EekTheCat'', the title character's owners Wendy Elizabeth and JB adopt a pink bunny who [[KillerRabbit turns out to be a giant gray killer in disguise]] and causes a lot of damages in the house. Eek's owners think it was him doing it and punish him several times.
* In an episode of ''TazMania'', Molly adopted [[DevilInPlainSight an evil stray cat]], but instead of another pet it tormented Taz.
* In the ''RubyGloom'' episode "Bad Hare Day" Ruby and friends take in an adorable rabbit who it turns out was feigning sickness to get into their house and steal their belongings. When Doom Kitty gets suspicious, he uses this against her and makes her look paranoid and untrusting.
* The ''WesternAnimation/CourageTheCowardlyDog'' episode "The Precious, Wonderful, Adorable, Loveable Duckling". Take a guess as to what is the new, troublemaking, innocent-looking pet out to torment Courage. Courage's owner finally realizes he was right when the duckling makes an attempt to kill her by tying her to a rocket.
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