So my friend was coming up to loon with me for the weekend, he isn't much of a park skier, but he was going to give it a shot. first run of the weekend he hits a 15 foot booter, little shakey landing, but ok, next in line was another 15 footer, he over rotates foward, and digs both tips in and slingshots to the flat catapulting his face to ice, and is knocked unconsious, when he comes too, 2 minutes or so, he has no clue were he is, how he got there, how old he was, what the year was, who was presisdent, and forgot what level his warcraft character was (haha).
Oviously he was concussed, hes ok, and he remembers stuff now, just though I would tell the story, it was pretty rediculas, I have never seen that happen first hand before (amnesia that is)