I have been 500 feet (150 meters) beneath the ocean in a dark cave where a single mistake would have killed me instantly. Yet I'd still be more scared to talk to a beautiful stranger at a bar than to go on a dive.. Am I brave or am I coward, I dont even know. I guess the fact that the fear has never stopped me, I still talk to them despite the fear is more important than the fear itself.
@xyfdi Yea the risk comes entierly (almost) from the human element. One or two breaths fromt he wrong tank and It would be garunteed death at depth