well, I've got a few of those moments under my belt, but most recently was in Curacao, after getting back on the boat after the dive, I got my Scuba unit off, and I was helping some of the others get back on which was a bit of a task due to the rougher waters, so there's me on the platform on the back of the of the boat, accepting fins, helping haul the divers onto the boat when the dive master taps me on the shoulder and says "I'll take your weight belt for you, so that we don't have to come down and get you if you fall in"
Note to self, weight belt off before hanging off the back of the boat with no BCD on.