What Animal Did He Still????

Riddle: Here is this guy he goes to a pet store.He stills a dog, didnt like it so he put it back.He went back the next day and stole a cat and thought the pig was fat so, he put the pig back.He didnt like the dog so he put the cat back.He never had the dog so he put it back.He went to tell his friends but they were not home.So he went back home and saw a dead cat.He started playing with it but it cut him so he shot the dog. The next day he saw the pig had killed the cat because it sat on it.He doent like the cow so he eats the beacon.He played with the dog and shot it but the cat is dead the pig is dead and the dog is dead

SO WHICH ANIMAL DID HE REALLY STILL?????