I'll nominate myself for one. Flying with a fellow demented, Planet AD captain, I grabbed the PA just as the ramp guy was helping the FA close the door (Dash 8), and said in my best automated subway voice "PLEASE STAND BACK. DOORS ARE CLOSING". She let go of the door about the time the rampie did nearly taking him out. He managed to catch it before it hit the stops. God only knows how much damage there would have been.
As luck would have it, shortly thereafter I had a main cabin door that wouldn't open at the destination airport. Pax and crew were all liberated from the aircraft via the forward emergency exit.