I had the same thought. Once I attended a small group discussion on hunger at a local University. A student from Africa said that when he first came to the U.S., he was in the cafeteria one day when a big food-fight erupted. It made him sick because of the contrast between the U.S. & Africa. He saw people starving over there, but here food is so plentiful we waste it by throwing it at each other as a joke.