Do you think you know enough about football to be a referee? Do you think you have what it takes to wear the black and white? Everyone likes to think that they could call the penalties on the field better than a professional referee in the NFL. Well, here is your chance to put your money where your mouth is. Take the quiz and see if you know the signals these refs have to call all game, every game. You might just find out that refereeing is a much tougher job than you ever thought!