I had one of those "Cats" get into my garage somehow and it try'd eating its way through the dryer vent instead of leaving through the garage door I left open for it to leave. for three nights all I heard was the aluminum being crunched on all night. I finaly went out there with a rubber toilet plunger and used it to get behind the dryer and beat on it with the rubberside till it got angry and bit the rubber plunger, I then yanked it like I was setting the hook on a trout catching expidition and the fucker flew out with the plunger and ended up half way down the driveway with the plunger. It got its bearings, gave me a nasty hiss and then went away some where, and never came back. creepy little fucker! If I never see one of those "Cat"s again it will be too soon.