I had a long career as a skier, including a two year stint pro and a few serious injuries (including the career ending 3 broken vertibrae), but two jump at me on this one:
Several years after leaving the pro scene I was living in Steamboat and tree skiing daily (my personal favorite, never focus on a tree, always look between them). I've hit a few trees in my day, but never head on (arm, hip and the occasional 'snow snake that grabs the ankle). This beautiful sunny, 2 foot new day I was skiing with a guy I had taught to ski 10 years earlier in Vail (Yes, I was PSI ski instructor, worst job I ever had... it was like watch porn with your hands tied behind your back). Anyway I caught an outside edge and was head-on for an Aspen (not a good tree to hit), I shifted my weight to my uphill ski (generally a no-no) and missed a brains on snow by less than an inch, I heard the 'whiz' sound. Scarry as hell. My buddy was below me looking up and one of the last things I saw before my 'yardsale' was him quickly turning his head away, he was sure I was dead... The two of had been first on scene on a brains on snow a month earlier. But, I got up and skiied away.
2. Every year I tried to spend 21-28 days in Snowbird/Alta. (which, is where I broke my back, on something as flat as a table). Anyway, if you've ever skiied there, below Little Cloud there is a rising cliff ranging from 30-80 feet. I was headed into it at a pretty good clip (around 30, which despite what most people think is very fast for recreational skiing). This particular time the cliffs were roped off (but they hadn't been 30 minutes earlier when I scoped them out). I caught the rope in the waist and could feel the stakes pulling out one by one as the rope jerked me. I arched (GS city baby) as hard I could away from the cliff and when the rope caught me (I wasn't pulling the anchor stake out) the rope was right below my knees, I was facing a little chute (5 feet wide, 10 feet down) with protruding rocks. The rope caught me, flipped me upside down and head over heals (litterally) I went down the chute. Didn't hit a thing, got up and skied away. Scared the living daylights out of me.
Then on 4.28.94 it all came to an anticlimatic end when I broke my back driving a ski into an ice wall on a flat surface at 30 mph. My head hit the ground so hard I broke 3 vertibrae. The silver lining... that's why I took up diving