Used to operate into a casino back in the seventies where there was no ground handling staff, pax were off loaded/on loaded by the pilot after locking down the controls, engine at idle, driving a 206 one day helping a pax out of the left rear seat and saw a chap walking towards the aircraft from the six o'clock position directly towards the tail rotor, ran and stopped him about six feet from the guillotine.
Another occasion at the same pad saw a woman walk from the seven o'clock position of a running Bell 47, duck under the tail boom forward of the tail rotor to talk to the pilot, she made it in one piece.