Someone gave you the best answer on the rodents early in the topic. A product called "Fresh Cab" will keep the rodents out of and away from your RV. One early review I read about it said that mice had chewed their way through a screen door to get away from it. We live in the country and have lots of rodent problems in the fall and winter. Not since we started using Fresh Cab. Four packets come in a box of Fresh Cab and you scatter the packets in your RV. The predominant ingredient used to be eucalyptus and that was the smell you got from it. Someone told me recently that the packets had different ingredients now, but that they still worked.