I know you already know, but just posting in case it helps someone else. Be really careful about letting a squirrel get into a closed area with you, or even too close to your body. If they feel threatened (which they will once they realize they are trapped) they will f--k you up. This happened to an acquaintance of mine and he has permanent eye damage from it. They may not seem like it when they are gracefully and happily climbing trees and branches, but they are fast as hell with reflexes like lightning, and claws like knives.