This is a must see video: Sad Cat Diary The part about the bathtub litterbox is es hilarious in my family. My folks used to have an older cat who got to a point where he would not use the litterbox that had been fine for years. My mother had to get a 9x13 pan and put it in her bathroom by the toilet and shower or the cat used the shower. Usually while she was on the toilet. Knowing this makes the video so much funnier for us. Esp because her cat would go back to the shower if she didn't clean the box immediately. Or he would yowl. But he waited to yowl. Until she was asleep, of course. He was a great cat,but he had his own way of training humans.