I think this apology is pretty cool of the guy. Yeah, you both could have been hurt bad, but most of the time when this happens it is a family that doesn't even acknowledge what they did was wrong. I freak out at people when they do it to me, but shit happens.....at least this guy is aware enough to know he made a  mistake, and he probably won't do it again. I will admit though, it is a pretty shitty feeling when you are about to get to the lip and you see some dumbass cut right over the landing. Sounds like it was a positive learning experience, even if it was at the expense of some jacked up kid.