Yesterday, I got a new weber Q 2200 so I was taking my old weber q out of the basement of my 5er, and I noticed mouse poop in the grill. I looked at the floor in the front compartment, and they ate the tin tray that collects the grease. I was shocked. Ive never had mice in the summer, and I usually do a good job sealing things up for the winter with dryer sheets and steel wool. So I ended up purchasing some ultrasonic sound rodent repellents on Amazon Prime so I can plug in the basement and inside the RV. Hopefully they work. These are the ones I purchased.