The thing I find interesting about being hit by a skier is that I have never, ever, in my life, heard an apology. Not even once.
I've collided with other people a bunch of times in my life. When I was a kid, maybe even by my fault. But I would always apologise.
Even today when somebody hits my from behind, I stand up, put on a smiley face and say something like "sorry" or "cheers" expecting the same reaction from the other guy so we can go and ride on. But the a**hole whose fault it was in the first place ALWAYS needs to say something about my mother, etc. I've never encountered a guy who would hit me and say "I am sorry".
If I'm not injured, I don't care if somebody hit me. Hell, there's hardly a slope that I descend without falling while pushing carves so hitting the snow isn't something exotic to me.
I've came to realize that real athletes won't be rude because they know that it is dangerous to continue riding if you are worked up and thinking how you'd like to kick the other guys ass. So all real skiers/snowboarders will, if you collide, just go on. On the other hand, the jerkoffs will always be looking for a fight, at least a verbal one, because they don't really care if they get a good day skiing. This way, they'll have a good story to tell to their friends.