On my crew, my umpire has taken a couple of hits in the past couple of years only because the action moved so fast he couldn't get out of the way, and he's a very mobile guy. Maybe took a bruise or two, otherwise he was fine.

Once when I was working subvarsity, the white hat got run over by a LB chasing the QB (white hat was moving with the flow like he should). I was covering the pass and didn't see the hit. After calling the incomplete pass and retrieving the ball, I saw people running to the backfield like a tornado had hit and saw my white hat was down. I ran over there, and by time I got there, he was asking me if anyone got the license plate of that truck. I told everyone he's fine, he jumped up and we went on like nothing happened.