I Was At A U2 Concert The Other Night...

After one of the song's ended, there was complete silence in the arena.

clap

clap

clap

Bono was standing above everyone clapping every few seconds. After about a minute of this he went up to the mic and said, "Every time I clap my hands, a child in Africa will die of starvation."

So some guy in the middle of the crowd yells, "Then stop clapping your hands, asshole!"