I saw a motor in a helicopter suddenly stop while it was in flight and after picking up the all the pieces the motor and system tested fine. Another guy was having radio problems and the motor started while is aircraft was in the pits and he wasn’t holding the aircraft. Holy cow! I got away from that puppy ASAP. You would think they would not connect the battery until the aircraft is in position on the runway. I think the loaded firearm approach is a good one.