I've always thought when seeing pics of Ebby how similar she is to my Hobbes...much more lady like of course but they seem to be the same gene pool. I know Hobbes would never go for a covered litter box since (to put it discreately!) he's quite big bone! I can't imagine a covered litter box big enough to accomodate him. He also has a funny "style" and looks up at the ceiling while peeing So I imagine a cover wouldn't work so well for him. They both tunnel to china as well but I guess I'll have to put up with being their personal LitterMaid and sweeping up after them. Gives my life purpose