Some time ago I had a near miss: I had to move a really heavy steel container 6foot tall and 3foot wide as I tried to move it It slipped and toppled over on top of me slowly pushing onto the floor. I found myself trapped under it, my legs had got crossed somehow during this so I couldn't move at all. I then started to realise I was being crushed and there was nothing I could do. I started to cry for help but the place I was working in was away from the road and no one could hear me.
After about 10 minuet's I was pretty sure my time was nearly up, still calling for help. Funny thing was I think I could have used my mobile to call for help only my wife came to mind, I said no I wouldn't call her and let her hear me moaning in pain until it was over. I couldn't let her have the last memory of me like that. As I started to drift away someone turned up and with a pole as a lever got me out from under the thing. When I had finally recovered and went into the toilet I looked in the mirror and saw my face, it was completely grey.
I have never seen that before any time. That was the only time I have looked death in the face and it was a really frightening experience.