I just saw it for the first time this weekend. Those that have not seen it, it is a shot of D Harf hitting the side of a slider, and it does look painful. It is a wonder that he did not get hurt too bad.
I got that movie for Christmas a few years back, my first wakeboard movie. I was watching it Christmas day, and then I saw that part, I wished somebody had gotten my reaction on tape, I am sure my mouth dropped.