A husband took his young daughter to the grocery store to help him buy groceries. In addition to the healthy items on his wife's carefully prepared list, the two of them returned home with a package of sugar-filled cookies.
"Why in the world did you buy those?" his wife asked. "You know they aren't good for you!"
"Oh, but don't worry, Honey, this box of cookies has one-third less calories than usual in them," the husband replied.
The wife questioned that claim and asked, "What makes you think that?"
"We ate about a third of the box on the way home."