If you’ve ever fallen off a boat into the water and been sucked under that boat and had to claw yourself back out again, you will understand why this is surprisingly non-trivial.

If you’ve been awake for 72 hours, jacked up on a pharmaceutical only God and the six most sadistic chemists at the Pentagon know about, and you just pulled yourself up on board a ship in the dead of night after tailing pirates for days, I have to image its even harder.

The Navy does prefer to kill their best and brightest in helicopter crashes. But its still very possible to get drowned to death on the job.