I have the scars from 19 stitches in my right hand to remind me. Happened 30 years ago, but was enough to keep me out of the hobby until last year. Most of it was mental anyway. I have a battery powered starter, use a stooge to keep the plane in place, and do not remove the glow starter until I am behind the wing. It has been said here, and is true in our club was well, some of the worst offenders are the experienced guys. (Not to mention one of our club officers that is training a newbie right now and has some of the worst safety habits of a lot other people.)