No straining to go or unusual pee odors that I've noticed. I guess I'll just try him out with some clumping litter first, and just keep caging him when I can't watch him. And if the clumping litter doesn't do the trick, it'll be time to get in touch with the white coats.

He's such a cuddlebug when he comes out of the cage, that's for sure! He wanted to be held and petted and snuggled. Though I suspect he's just trying to soften me up so I don't cage him again anytime soon.