Luckily I've never been hit, but one time when I was helping a friend setting up a shot, he had rented a Phantom Flex with Angenieux lens so we were being super careful all day, several other friends were also there helping.
Then suddenly out of nowhere some gaper kid comes by, takes a tiny amount of air of the take-off ramp for a massive tree log grind and rushed towards us and fucking sprayed the camera.
The kid was speeding away, and none of us had their skis on so there was a scramble to get on but there was no need. One of those old local's in a bright 80's onesie with 400 yard long skis who had been watching us for a while had taken the kid down and was now scolding at him in thick French with a dialect I couldn't comprehend. Swell fellow.
Camera was thankfully fine, thanks to my patented trashbag+UV filter heavy weather protection system.