The toaster? That is one determined cat. My neutered male Cooper will happily pee on leather thus, no leather furniture, besides that he's only pee'd outside the box if he deems it unsanitary.
Shiloh however, the little black kitty in my avatar, has pee'd on clean clothes though it now seems he's grown out of it at a year and a half.

My brother's female cat started spraying, they got her spayed and it stopped. That's the only experience I have to offer reguarding the spraying issue.