Moishe took his daughter Tali to the grocery store to help him buy groceries. In addition to the healthy items on his wife Miriam’s carefully prepared list, the two of them returned home with a package of chocolate chip cookies.
"Why in the world did you buy those?" Miriam asked. "You know they aren't good for you!"
"Oh, but don't worry, honey,” Moishe said. “These cookies have one-third less calories than usual ones.”
Miriam looked all over the package but couldn't find any claim to that fact, so she asked, "What makes you think that?"
"We ate about a third of the box on the way home."