I_0nly_downvote

Because they value their experiences and memories?!

I'd have to say the regulations, the gas mixtures, and the dive tables.

One of the scarier things that I haven't mentioned that happened to me was when I was walking on bottom and started seeing little greenish lights light up everywhere. At first I was thinking it was some Abyss type stuff going on, then I was like Oh shit! I might have a brain tumor! But then I found out it was just some luminescent phosphor I was stirring up on the bottom. It's actually quite beautiful!

Yeah the second picture is of a crane hook on the Balder. It's a construction barge, and I believe the largest in the world! We used that giant hook to put in the first APL Buoy in the Gulf of Mexico. The APL Buoy is like an underwater gas pump for oil. The ship places itself over the top of it and the APL Buoy rises up into the bottom of the vessel and loads it up with oil. It was a pretty cool experience installing it! We had Nat. Geo out there filming us the entire time!

A scary story?! I've got a few! I'll copy paste one from earlier real quick!

When I first started diving I was walking a pipeline in zero visibility for a survey. I came up to a "wall" that wasn't supposed to be there so I called out to topside and told them there was something in my way. Topside called back and said that they didn't have anything marked as being there. So I started banging on the "wall" explaining to them that there is clearly something in my way. About half way through my explanation the "wall" moved and smacked me in the face making me scream like a school girl at a horror movie! The "wall" was a Goliath Grouper best I can figure. Still not too sure.

Besides that, another time I had just got done with a dive and I was coming back up. The visibility was beautiful! Clear as far as the eye could see. I was running through my deco stop and had to stop for 15 minutes , otherwise I could risk getting bent. Then, not even ten feet over head, HUNDREDS, of hammerhead sharks started swimming past! That was both terrifying and beautiful.

Well, when you're working underwater, sometimes you just have to take a crap. So there I was, minding my own business, taking a crap. Turns out trigger fish like to eat crap straight from the source. It was a little scary and uncomfortable to say the least

No, fortunately I don't. I do know of two guys that were killed within the same month from Manta Rays though. They were working on bottom and all of the sudden they were dragged straight up super fast and were bent really badly causing them to die, Turns out the Manta Rays like to play with diver umbilicals.