A programmer is going to the grocery store and his wife tells him, "Buy a gallon of milk, and if there are eggs, buy a dozen." The programmer leaves, buys everything, and drives back home. The wife asks him "Why in the world did you buy 13 gallons of milk?" The programmer says, "There were eggs."

Later he goes to pick up some dry cleaning. His wife told him, "While you're out, pick up some bread." He never came home..