My cat pisses on the toilet...then the fucker howls to let him outside...fucking cats!! Lol!!All your cat needs is a look see to connect the dots. If your cat is already paws-on-toilet to see you wizzing, that's about all it takes. As soon as the slow ones see a log, it's a no brainer. Your cat wants his business to go away as much as you do. That's why they bury it.