For some reason, the past two mornings while I have been in the shower, my cat has decided to pee on my bathmat. I step out of the shower to find that my clean bathmat now has a puddle of cat urine that I must avoid. I've checked, the litter box is clean, hasn't even been used since the last cleaning. Why is he doing this? Nothing has changed in the apartment to cause him stress. How can I stop him? Since I know you like pictures, a picture of the jerk responsible (Steve Martin) is attached.