I consider myself to be very fortunate to have had my mechanical training in the USAF. They pounded safety into your head and every base I ever worked at was the same. When I see some of the things that untrained people do around power equipment it scares the crap out of me. I know people who still clean parts with gasoline... WTF!?
Your entire life can turn on a dime, it's up to you to protect yourself.