A good idea is to find out how it got in, do you have any vents that lead out? We seen what happens to a house when you have sterio`s vented to the outside, it even had a heavy duty screen nailed over it. The people were gone on vacation, and when they came home the house was a mess. That little imp chewed up all the window sills, torn down curtins, banged on the windows so hard it bled, and bled all over the house on carpets, drapes, sofas, chairs, cupboards. You cannot believe what that house looked like.