Claptrap is a very, very lonely robot. His entire product line was killed off, and to the best of his knowledge up until Borderlands 3 he was the only remaining Claptrap unit alive. When we are first introduced to Claptrap in Borderlands: The Pre-Sequel, he is even hated on by the game, calling him annoying, a mistake, and a bad choice of a vault hunter, with even his action skill, VaultHunter.EXE is called malware. At the end of Borderlands: The Pre-Sequel, after you've played as him up until the end he is shot by Handsome Jack and then his product line is sent to die. He lives through the help of his malware adjacent action skill. In Borderlands 2 the very first thing we see is Claptrap, scrounging around through dead bodies. Alone. He has been stripped of his ability to make his own in the world of Pandora without his ability to wield guns and climb stairs, and lives in a graveyard/scrapyard. The scrap/graveyard is used by the antagonistic corporation of the story, Hyperion, where they dump everything from junk, to human remains. Amongst them lies Claptrap surrounded by the remains of his fellow CL4P-TP General Purpose Robots. Claptrap, eager to see a non-dead vault hunter, who can be their ticket out of the place and to Sanctuary, the last bastion of the resistance, invites them into their home, and informs the Vault hunter of what they, Claptrap, are. After this, a strong and fierce animal of the species "Bullymong" who is named "Knuckle-Dragger" breaks into their home and steals their eye. Claptrap, with the help of the vault hunter, reclaims their eye and goes to Southern Shelf. Southern Shelf is home to a town overrun with bandits and bullymongs, called Liar's Berg. Inside Liar's Berg is a man called Sir Hammerlock, who had repaired Claptrap after his wheel was taken and he was shot. After Liar's Berg is liberated, Sir Hammerlock is clearly not happy about the return of Claptrap, yet still repairs him so he can go elsewhere. Claptrap and the vault hunter go to a ship named "The Soaring Dragon" the home of a bandit clan by the aptly named Captain Flynt, where he was used by said Captain Flynt as a torture doll. After the vault hunter kills Captain Flynt, they take a ship and sail to Sanctuary, where Claptrap lives. In a corner of town. Surrounded by junk. Liked by nobody. Hell, in Borderlands 2, Claptrap even holds a party for the seventh anniversary of when he rolled off the production line, and everybody who he invited doesn't come. In Borderlands 3, Claptrap returns, and using the parts of other dead Claptrap units, he attempts to build himself a friend, but he is unsuccessful, and the friend he's built leaves him alone. That is all my propaganda for why Claptrap should have a Cubone. The Lonely Pokémon for a lonely robot.
