I've witnessed stuff like this twice, first when i was in whistler (snowboarding - I was young and stupid), and cutting along the edge of this road run, this guy and his kid were making nice regular turns down the middle of it, so I went to pass them on the outside, suddenly the old dude turned right out to the edge of the run, I had nowhere to go to avoid hitting him, tried to carve around but went off the edge, screamed 'fuck!' as it happened, as I was flying off the run into the trees, rag-dolled 30ft down this slope and hit a tree. Was shaken but only bruised, unclipped and started to hike back up, this old guy was stood there at the edge of the run, screaming at me totally red in the face... took me a while to work out what he was on about, then realised he was mad at me because I swore in front of his kid, I shouted 'I'm sorry' and carried on climing up... the geezer carried on shouting, and yelling... when i got back up to the top near the run he approached me still yelling and started screaming in my face. I was like 'I'm real sorry man, I was just shocked... i just fell like 30ft and crashed into a tree man... its not like it happened on purpose'... he just stepped forward and pushed me and said 'grow up and act responsibly'... I nearly fell back off the edge of the run.... couldn't believe it... I flipped, tore my gloves off and jacket and screamed at him every curse word I knew... felt kind of bad teaching the kid so much new material in one go, but he got real scared and backed down and skied off calling me a Jerk... What a prick.
Second time saw a french ESF instructor beat a snowboarder with a pole and scream at him till he was horse for nearly crashing into his kids class, which he had stopped over a blind ridge, at the narrow entrance to the Terrain Park. Prick