It was the cricket club's annual dinner and the members settled back for a long boring talk by the president of the club who had the reputation of drivelling on and on.
He had been speaking for about five minutes and was still talking of his schoolboy cricketing days, when the captain passed him a note. The speaker glanced at the note, closed his speech quickly and sat down. The members could hardly believe their good luck and asked the captain what he had written on the note. The captain grinned: 'Only four words: "Your flies are open".'