A member of the Sigma fraternity is sitting upside down on a chair in the middle of a college lecture hall. He is wearing typical fraternity attire: a navy blue sweatshirt with the Sigma symbol, khaki shorts, white sneakers, and a blue baseball cap. The chair he is on is a standard university chair-desk combination, featuring a wooden surface for writing and a metal frame. He has his feet on the desk surface and his head hanging toward the ground, in a daring display of noncon