Oh man, and can they scream! A couple of years ago I had an opossum decide that under my house was the perfect place to take up residence. (We had temporarily opened things up to work on the furnace ducts.) It was kind of a surreal experience to walk through the house and have these sub-flooring screams come at you like you were the one trespassing!

I eventually encouraged them, very gently, to move to greener pastures. But it's still kinda funny.

Too bad they weren't as cute as these three!