Had mice get in one time but only squirrels was last year under the RV and on top.
We need a companion for our present Dog. I had thought seriously of a Jack Russel or perhaps a Rat Terrier on leas sleeping under MH.
We have had two cats that liked to sleep under the hood. Dangerous if you forget.
We have two ultrasonic rat repellers in the basement. I don't know that they work but no rats or squirrels so far.
Things that stink except skunks don't seem to affect wildlife like it does us. The Cab Fresh if you have it inside a garage might be worthy of consideration.