Used to own a construction company. There are more stupid ways for stupid people to injure themselves than there are tools and contraptions to do it with. I've seen some lulus with results making it all the way to quadraplegic. The self amputations/mutilations don't even count because they are too easy to perform. Just quit paying attention and put a body part in the way of any type of blade.

Dick's presentation of the saw blade for the drill motor is up there with some of the all time greats.

The parody of the "knee scooter" is funny. I'm quite pleased to see that it will never run.