Another thing that I've forgotten to add to my posts is that if I leave the dog in the Travel Trailer I pull the shades down. It makes it nice and dark in there which the dog likes for sleeping and it keeps the dog from looking out, or people looking in ,and disturbing the dog.
Heck, after dark if me and a girlfriend want privacy in the TT. I just put the dog in the pickup. He's purty much grown up in there and thinks of it like his house. Again, since this is the way he has always been raised since he was weaned there is never a problem.