I used to have a Siamese cat that would use the human toilet to pee, rather than the litter box. (Never could train her to flush it, tho! ) After she did it, she would run through the house like her tail was on fire, and plop into her bed-box just like that, face down. It was almost as if she thought, "If I can't see you, you can't see me! So you don't know that it was me that peed in the toilet and didn't flush it."

She was so funny!