Calorie Counter

A husband takes his young daughter to the grocery store with him. In addition to the healthful items on his wife's carefully prepared shopping list, they return home with a box of sugar-laden cookies.

"Why in the world did you buy these cookies?" his wife asks. "You know they aren't good for you."

"Don't worry, honey," he says. "This box has one-third fewer calories than usual."

"Why is that?" his wife asks.

"We ate a third of the cookies on the way home."