Not me, but my uncle
Back in the 60s/70s/80s he used to do much of the lighting and set design type stuff for Pink Floyd. For one of their tours somebody had the idea of flying a Lancaster bomber over the stadium and releasing a bomb bay load of ping pong balls over the crowd. After much planning and wrangling to get everything ready, the night of the gig arrived and the Lancaster appeared right on queue. The ping pong balls were released, but thanks to a strong wind and unpredicted air currents in the stadium, the entire load was dumped on a small section of the crowd at the back, leaving them knee deep in little white balls. Oops.
( SteamedCleaner, Mon 29 Jul 2013, 14:18, Reply)