Andy Rooney once pointed out that the two biggest sellers in bookstores are the cookbooks and the diet books. The cookbooks tell you how to make food irresistibly delicious, and the diet books tell you how to avoid eating it. Orson Wells once said, "My doctor has advised me to give up those intimate little dinners for four, unless of course there are three other people eating with me."

At a Weight Watchers meeting just af…