I re-asked Rick Morrow, my show contact. He works as a carpenter, putting shows together at McCormick. He does get hired by several different show managers, so he knows the ins and outs pretty well He admitted he had never seen the show spotting entry before, but one of the shows had a problem when the porters were hired to bring in and spot several cars. Unfortunately, they were NASCAR racers, with extremely low ground effects, and the porters revved the motors and then drove over the aisle carpet. Fortunately, no carpet caught fire, but there was lots of concern for fires after that problem. Rick volunteered to recheck with his buddy about the ruling. I can check with Triumph