maybe it was just a nasty rumour, but i was sure i read about it somewhere.
not a nasty rumour - and its part of Franks safety course. similarly the Tail rotor you will notice the short downard attachment on the R22 tail boom, designed by Frandk, because...
years ago we had two, one a fatal head strike with helmet on and another not fatal, broke his head in two twisted the top half about a bit, but it was straightened up then stitched up with titanium screws and wire. The pilot was most disappointed when the airport metal detector failed to go off.
Know of another pilot in the west many years ago on a survey job, looking at maps on the ground after dropping geos off, without thinking stood up and walked back to the motored down disc.
Geos ran nine miles back to base camp, didn't know how to switch of the machine
another pilot threw his hand up into the stab bar after checking the fuel tank while standing on the litter.
agreed, constant problem with touros, all mainly to do with unfamiliar noise and air pressures in the ears, especially after landing.