People are going to make mistakes, it happens. We are human, and sometimes human error costs lives. Unfortunately, this time it did. My sympathies for him, those who cared about him and you too martinfocazio. I've never had to be there for such an accident, but I been there for some serious accidents. It has not been easy to see serious injuries, and death must be harder. It's too bad all around.

As far as Martin's comments about being aware, I think they are on the money. The most important tool you have for keeping yourself alive and thriving is between your ears. Use it well, and you stand an excellent chance to live long and prosper, failing to do so you risk much.