A member of a diet club bemoaned her lack of will-power. She had made her family's favorite cake over the weekend, she explained, and they had eaten half of it. The next day, however, the uneaten half beckoned. She cut herself a slice. Then another, and another. By the time she had polished off the cake, she knew her husband would be disappointed.

"What did he say when he found out?" one club member asked.

"He never found out," she said. "I made another cake and ate half."