That's what I'd like to know. He knows how to use a litter tray (when I was carrying my piss soaked clothes to the washing machine at 6am I stood on some of the litter that he'd scrabbled on to the floor). He also has a garden, accessed via a cat flap that he knows how to use.
The cat is a troll. He did a piss on one of the bikes the other day and on xmas day he did a poo in the bath.
Has he been neutered?