Once on the MMA Hanford run (rally), The OL and I set up tent on the lawn within easy walking distance of the loo (restroom). We had made a loop tape of the soundtrack from an especially wild scene in an X rated movie and started it playing in the tent, then stood back to watch. There were a lot of interesting reactions, especially when the batteries started to go flat and people began to realize what was happening.
Another time at Hanford, during the bike games, they had a contest to ride 3 wheelers from a starting line to a finish line blindfolded. Whoever stopped closest to the finish won. A poor guy on a Mustang Delivery was stopping exactly on the line, then his clutch cable broke.