Fracis' post reminded me of a funny sports story from my past.
While living in Colorado my wife and I were friends with the highschool girls basketball coach. A few games a year we would go to help support the program and would usually stay for the varsity boys game that followed. On evening during the boys game there was a particularly loud and aggresive father in the stands. His son was the point guard for the other team and anytime his son had the ball he was very vocal. At one point in the game his son was handling the ball at the top of the key and the the father screamed out his instructions. Just before the father yelled, fate would have it that the entire gym went silent at the same time. I've never seen a spectator literaly stop a basketball game but i swear every player on the floor turned to the stands for a brief moment after that father screamed "PENETRATE HIM!".