h2g2 The Hitchhiker's Guide to the Galaxy: Earth Edition

Heckling is an art, and I think even performers/athletes appreciate a clever heckle. E.g. a popular singer/songwriter was performing his vast repertoire - no covers - in a small venue and imbibing his normal beers onstage when he stopped in the middle of a song. "I can't remember the words to my own song." A voice from the audience said, "Maybe you can remember some Jimmy Buffet?" I thought the singer was gonna bust a gut trying not to crack up.

I'm not a tennis fan, but my wife watches on TV. I recall a match in a big stadium, maybe Wimbledon, apparently pretty one-sided. The crowd was pretty quiet, apparently just waiting for the inevitable, when a plaintive voice from way in the back said "Stop the fight!" Maybe its a standard tennis heckle, but I'd never heard it and thought it was inspired.

Yeah there are some quite inspiration shouts from the crowd at times