As someone currently in transition from stationary civilian to full-time traveler, I read a lot about the majestic powers of RVing. Heck, I’m guilty of contributing to that doctrine.  But with my recent book, Tales From the Black Tank, I realized a lot can and will go wrong out there on the road, so I decided to survey a group of thousands of full-time RVers and ask, “What is the absolute worst thing about RVing?”