Hmmmm... that whole scenario sounds familiar (except for the phone part, but it IS something I'd probably do!)

I have a poppy pee pot too. His name is Allen and nothing frustrates me more than scooping all the litterboxes, run out ot the trash, and walk back inside to find a fresh mound of Allen poo sitting inches from the box. At first, we thought he was such a big cat that he simply hangs hit butt off the edge of the box and misses.... but noooooo... we've caught him enough to know that simply isn't the case. I typically recommend "Cat Attract" litter. It was working REALLY well for a while. But now he doesn't care. Its no longer optional to use the box. Its now something he just won't do.