i had a cat years ago, that preferred peeing on the bed to the clean box. No idea why. Except maybe after the first time, he needed to reinforce his marking (even though he was nuetered -- he was an adult feral when nuertered so maybe to late to stop behavior?). Anyway, I'll never forget coming home to my Salem apt and pulling down the clean covers to find everything peed on- I stripped the entire bed, soaked up as much pee as possible, and laid down a bunch of towels then all clean linens and covers. Went to crawl back into bed.... He'd peed on it again! Ya know, I don't remember how I handled it, I must have had more linens because I never slept on the hardwood floors! and I never yelled or said anything to him. I knew he meant no harm. oh what we put up with eh? My best litter box rebellion was a yellow boy who would only pee in the tub- he'd squat right over the drain and leave no drips anywhere!