Many years ago I was riding down the Llamberis path on my trusty GT RTS (yes it was that long ago) after an aborted attempt on the summit due to bad weather.
Hopping over a water bar a gust of wind lifted the bike up horizontally and sent me flying and bouncing luckily down the trail. After lying there for several minutes to check for potential injuries I finally got to my feet with only a badly scuffed/holed knee and torn waterproof and badly dented spirit.
I found the bike about 30 ft up the trail, limping back up I was amazed I had managed to bounce over/through some very nasty pointy and sharp rock outcrops without more injury.
Was a bit more cautious when I finally got back on the bike and crawled back down, saw nobody else that day on the mountain, could have been there a long time with more debilitating injuries.
Lessons learned –
Thankfully I put a helmet on before starting back down.
I always wear knee pads now, regardless of what I am riding.
Never ride new or potentially risking condition on your own.
Oh and mobile phone were not common back then.