Balls out. Or more accurately, balls front.

Most NFL players never get a 'real' college experience (like having to actually read your report card or remember what class you're in), which perhaps explains why they're so into hazing despite being adults. But, thanks to coaches who apparently agree this builds team morale ("hey guys, remember when we joined the team and we all had razor burn on our heads and then our helmets gave us horrible scalpne?"), football players can finally have the fraternity experience they missed out on. Here are some of the most delightfully immature and humiliating haircuts and pranks pulled on NFL rookies in recent memory: