A guy was sitting in a bar, looking incredibly glum.

The bartender said, "What's wrong?"

The guy answered, "I had to go on a week-long business trip, so I hung a weight from the bottom of my wife's bedspring just above a bowl of cream."

The bartender said, "Did you come home and find cream on the weight?"

The guy, "It's worse than that. The weight churned the cream into butter."