Friend of mine that looks after the RR Spits also is involved with the Deltic that still runs on the mainline.

Most frightening near misses I know of was a puma that fell over on the lazy runway at Odious, as the ground crew outside was running away a rotor blade section separated hit the ground bounced up and hit him flat on the back and pushed him over, he got away with it, as did the guys in the caravan playing cards as another blade past through the sides between them.
Another when doing a rotor turning refuel was hit by a snapped off static wick that stuck out of his forehead like a Dalek penetrated his skull and just stopped short of his brain, he didn’t feel any pain! And it was removed in hospital… Used to snap off all the time and after that they were rapidly replaced with a shorter item!