I went downstairs last night to do laundry and kept smelling a strong odor of pee. Our basement is not finished yet, but we have carpet pieces laying down everywhere, so I checked them all to see if the cats were using them as...uh...comfortable places to relieve themselves. I couldn't smell any pee on any of them. I then take the trash can that is buy the washer outside to the trash and dump it, and the smell (along with liquid!!) comes out in full force. Our smallest darling had decided to use the trash can as a toilet.
With several minutes of extreme protest, he finally admitted to peeing in the trashcan. He first decided to blame it on the cats (which would have been a feat that I would have loved to behold) and then realized that I wasn't going to be mad, I just wanted him to fess up and then not do it again.
Pee smell is gone, kid confessed, I won't be pissed (ha ha) at the cats. Problem solved.