My wife and I were once watching a match at Wimbledon when a fire broke out at a nearby apartment building. Everyone could see the fire, but no one made any audible mention of it. I suppose that’s not a surprise at a tournament where the crowds are often so quiet you can hear the ball hitting the grass. So when the crowd makes noise, it hurts. From the NYT: From the Quiet of Wimbledon, the Loud Groan of the Crowd.