Seems to me Midchuck's son-in-law had a similar idea a few years back at Old Songs. Peter was bitching about how far he had to trek everytime he needed to go so ...his accomodating in-law took his pick-up over to the Porta Potties and stole one. Planted it right in front of Midchuck's tent. But he did it free of charge. Check out the Old Songs threads for details.

NYC did a trial for Potties on Wheels. For a quarter you could pee right on Madison Ave. Then when you vacated the room, a giant SWOOOOSH would sanitize it for the next customer. I always wondered what would happen if instead of letting the door close you held it for the next person and they got in on your quarter. SWOOOSH! down the sewer system with the alligators?