I agree with Hancho. Alot of people like to "say" or "pretend" what they might do but reality is that the best training in the world cant always help you in a suprise attack. There was detective that wrote an artical some time back and he said in all his years of robbery and mugging investigations, all the vics had one thing in common. All of them said "they never seen him coming"!
This video while tragic and heart breaking to see happens all the time and you never hear about it. You only hear about this one cause the media has a video to show you and videos make ratings.