|Dave was feeling depressed, and his best friend Keith decided to take Dave to the Pub, to try and cheer him up.|
He asked Dave what was it that was troubling him, but Dave didn't want to talk about it. So they sat there getting slowly pissed.
Keith matched Dave drink for drink, trying to get him to talk about what was troubling him.
Gentle prodding was ignored until finally, after downing the sixth, Dave blurted out, "OK, it's your wife."
"My wife?" his Keith demanded. "What about my wife?"
"I think she's cheating on us."