Lumpy mashed potatoes oozing down the wall; green beans soaring through the air; stodgy meatloaf guiltily smeared across the cafeteria floor. Who threw that first fistful of food? Could it be the shy new kid cracking under the pressure of being new? The star athlete? He could easily throw veggies across the room. Perhaps the perp is someone completely unexpected, like a top student who has never been in trouble before? Someone...