When I was doing a lot of high school sports, I would occasionally get nearly-flattened. That was the big hazard, but since I'd mostly have the run of various fields, my favorite spots to set up would rarely be *really* in the line of fire. I can remember once taking a soccer-ball off my monopod, (embarrassing, but no harm done,) and really hitting the deck when about six hundred pounds worth of football players came jumping over me. (They apparently thought this was great fun once they realized I was OK. Didn't even disrupt the play.

)