I found myself riding in a Seahawk helicopter coming in on a ship. I was just a passenger, but there was a Chief who was training a new sailor to get qualified for his aircrew badge. This sailor’s job was to watch out of the door of the aircraft. His job, his ONLY job, was to watch a specific part of the rotors, and if he thought we were going to hit a line or a tower or anything else, to waive off, abort the landing and we would try again.