Submitted by infojunkie on Thu, 2006-03-09 23:30.
Once the prototype of the original arcade game Pong was made, it was set up at a local bar for testing. Its makers, the first Atari engineers, watched as bar patrons started playing, then left. Next morning, they learned the machine had stopped working after some time. When they opened the box, they found that the money coins had filled up the bin and caused the machine to hang.
Found in a 2003 Discovery Channel documentary, "The Story of Computer Games", a Leopard Films production.