Comment by cjbgkagh

Your mind will play tricks on you, the last thing you'll think before the accident is 'this is safe'. In machining a technique to fight that thought is - don't touch anything with your finger that you wouldn't touch with your 'pecker'. With falling asleep while driving you'll often think a little nap wont hurt - an absolutely ridiculous thought in hindsight but you're not working with 100% of your faculties 100% of the time.

There are many activities where accidents are rare but severe resulting in overconfidence. In activities like motorbike riding or gliding aircraft people will convince themselves that they're skilled enough when all that has happened is that they've been lucky, and given enough instances their luck will eventually run out. Knowing the stats can help avoid confusing luck with skill.

I generally study the stats and even I get caught out, usually when working while fatigued so I simply have to refuse to work when that happens - the accidents are not worth it.