[JerryM]

The scariest thing to me is how much of this stuff I have actually seen. About 25 years ago I was in the break room at work & one of the guys in my team had been seen going to the storeroom an hour or so earlier, so I went to check on him. He was on the floor with his pocketknife stuck in his neck to the hilt. He survived that, but died of pancreatic cancer within a year (I think that was why he tried to kill himself).
On the deep water thing, I have actually been able to go for a swim near the deepest part of the Pacific, and I will grant that it is a strange feeling to know that there is over five miles of water between you and the bottom, and who knows what unknown creatures lurk below.
One of the ships on which I served had been in a collision with a tanker several years earlier, and most of the Chief Petty Officers on board were trapped in their quarters and burned to death. During my years at sea, that was my worst fear, but it was not serious enough to make me want to quit going to sea.

Jerry