Bridge

Paul and Betty were over at Dan & Nancy's house, playing bridge, and, unfortunately, they had made the mistake of being partners. After about two hours of intense play, disappointing results, and myriad squabbles, Paul got up to go to the toilet, but he sort of forgot where he was and didn't close the door.

PPPPSSSSSHHHHHHH! went the stream, like a cow peeing on a flat rock. The sound resonated into the den, where Dan gulped and said, "Excuse me; I'll go close the door."

"Never mind," said Betty, "this is the first time tonight I've known what's in his hand."