My bathroon is usually a cat free zone, but years ago my RB wonderful cat Cecil used to pee in the toilet! I would catch him squating on the edge every so often, and it cracked me up. Never learned to flush though. I bought one of those foolish 'train your cat to use the toilet' gizmos, and that was an instant failure. It was a clear plastic form that was placed between the seats, and you sprinkle 'magic cat attractants' into the form. I found out the hard and soggy cat way, what the stuff sprinkled in was....catnip! It was cracked within an hour, and though I should have sent it back, I pitched it.