that's funny, but sad to say there might be some places you might have to post that sign
I have converted school bus for a rv, I built it myself, and if I wanted to I could have bought a nice class A. When I make a reservation for some parks, I have to state that its not a meth lab, we are not hippies etc etc, and send pictures of the bus, one place in Florida wanted a picture of me and my family
(they got one of my middle finger), so you better keep the sign handy your great motor home has been stereotyped.
love the older class A