I grew up on a farm and lived/worked farm country for years, so I have a pretty different outlook on pests. We have a choice when I think of where they want to live compared to where I want them. One big thing that I have found is that rodents like rats, mice, and squirrels is that they will make their own holes if they can find a way.
Here in central Texas, that includes chewing throuigh the trim to get in the attic for the winter. In my view, if they chew the wires off my furnace, they have to die!
They don't just chew to eat but are "required to chew to avoid their teeth growing long enough that it kills them. Telephone and power companies have spent lots of big bucks to find how to keep them off cables where they chew the insulation off. That means they will chew whereever they are and many things that they don't want to eat. That means things as odd as wires, insulation, or rubber things like brake lines!
Once you find they will chew the wiring looms on your RV, you may have a different outlook on those "cute little furry things"! In my view, there is nothing cute enough to stop me from killing them in any way possible once they have torn up my house, my car or my RV!
I find throwing some of the rat bars or cubes back far out of sight and out of my life is one way to slow them down. Those are designed to dry them out to avoid smell problems and seem to be the only thing that works!