High school gym class. It’s the stuff of comic nostalgia and adolescent nightmares. (Anybody watch The Wonder Years?) The gym teacher personalities, the locker room air, the laps, the team picking, the annoying whistle. Maybe you were one of the jocks, automatic buddy of the instructor, who got away with doing very little because it was your season and you already worked hard. Or maybe you were among those who just tried to stay under the radar and do just enough so gym wouldn’t ruin your gradepoint. Or perhaps you were truly an earnest participant, athlete or not, who found gym a refreshing break from textbook lectures and worksheets.