Closest you have come to dying

[nevadaJACK]

Thought this might make for an interesting thread. I think it odd how we flit through daily life with all these things that can so easily kill us, and yet most of us emerge completely unscathed. What's the closest you have come to biting the big one? Here's mine (pretty tame, but I'm sure others will have spicier contributions)

I was scuba diving, and all 8 or so of us divers were in a line, one behind another, with me at the very end, and the 2nd instructor behind me bringing up the rear. This was my first underwater certification dive, and I apparently hadn't affixed the tank properly to the tank-holding apparatus, and -- as was told to me later by the instructor behind me -- it slipped out, and was free-falling in the water deeper and deeper but he saw what was happening and caught it just before it would have consumed all the slack in the line going to my mouthpiece. Had he not noticed it and caught it, it certainly would have ripped my regulator (aka mouthpiece) out. I was only around 15 feet underwater, and might have been able to shoot to the surface unharmed, but I prob would have panicked and taken a big gulp of tasty lake water. I don't really know if taking on a ton of water is enough to kill you...or whether being resuccitated Hasselhoff-style is a straight-forward procedure...but it was enough to spook me pretty good.