Pissed on my roommates floor and blamed his puppy.

Well for context we were 2 grown men splitting a 1 bedroom apartment. A few months go by and my roommate had decided it was a good idea to get a German Sheppard puppy. Obviously not good considering we didn’t have a big enough space for a dog like that. Anyways this dog was barely trained and would come into my room and pee all over the floor. So I took it upon myself to grip it and rip it in his room while he was gone. Funny thing is he thought it was the dog.