A foo fight is a spontaneous form of chaotic collective behavior, in which food is thrown around a room, usually a cafeteria, in the manner of projectiles. It is usually started by one person, sometimes by accident. When it is not started by accident, the starter would normally scream "Food fight!", and throw any food at hand to get things started. Those who participate in food fights in cafeteria settings are usually punished severely. Food fights are a common element in slapstick comedy, with the pie in the face gag being especially prominent. Food fights are frequently featured in children's television and books, usually as an example of destructive or reckless behaviour. One famous food fight scene in a movie took place in National Lampoon's Animal House. Another took place in Hook.