I work in machine shops everyday. I'm a machine shop tech. One of the shops I work in, about a year ago, a young man (19) was polishing a part in a lathe. The part was about 11" long x 1 1/2" in diameter. Spinning it a about 900 RPM. He had only about a half inch chucked into the machine, but was using a tailstock (proper -- SAFE -- way of doing the job. But for some reason he backed off the tailstock and proceeded to polish the part some more. The part flew out, hit the young man in the chest and it ripped him apart. He bled to death in less then a minute.
I see quite a few machinist with missing fingers, or parts of fingers missing, but thank God, deaths are not too common. 30 years in the business and I still have all my fingers. (Knocking on wood!)