Had a 75 Bluebird years ago and a squirrel chewed his way in thru the refrigerator vent screen, then thru the wall into the rear upper cabinets in the bedroom. The upper cabinets in that era were around the room with 3 separate overdoors just like a 727 pass jet had. He tried to chew his way threw all three doors and the side panels. I know it was a squirrel because we met each other in the main aisle when I went to retrieve the MH out of the barn. The little bugger was a Fox sq. and he had stored over a peck of walnuts in the overhead cabinet! Cost me about 300 hundred in materials and at least 30 hrs. labor! Dave