We have a deck boat that is stored in a shed. It will keep larger animals out but not rats and mice. This past winter a family of rats lived in the boat. We've had a few mice before but nothing even close to this! They chewed the straps off of several life jackets to make a big nest out of. Also chewed a few wires. Looks to be an expensive and time consuming thing to fix. What do you guys that don't have ratproof storage do to keep this from happening?