I wasn't there but read about it in Flying Magazine back in the 1980's
Sikorsky S55 dedicated to skydiving because of the large sliding door and roomy (walk around) passenger compartment .... pilot was up high and out of site of jumpers.
Briefing always included instructions to remain under the rotors for CofG purposes but this flight a couple jumpers exited and the remainder stayed in the back ..... including one timid diver who had gone up numerous times but was too chicken to jump and always came back down in the machine.
Pilot said full fwd cyclic would not solve the tail-low and he was getting close to losing control so he hit the emergency bail out button that flashed a sign in the pass compartment.
Pilot said heli leveled out and after he landed he saw even the chicken diver had jumped.