I have never taken cat on RV trip but may have to. She is scared to go out and prefers inside. She likes to run from one side of house to the next and that is her exercise. In a small camper what do you do with an inside cat? Is the cat happy? I could leash her and take for a walk, but still most of her day would be inside. she sleeps most of the time but Im concerned of the small space... How do cats do?