Took my Sunline out this weekend for a quick 1 night getaway. I had not been in the traielr for 2 weeks and was shocked when I opened the drawers to see chewed up insulation and mouse droppings. It was in all of the drawers and lower cabinets. What do people do to keep mice out? I shineda flashlight into all the spaces on the floor that I could see, and no mouse and no mouse nest. Help! It is so gross!