Don't let go of the handle of the drill press before ensuring your face is out of the swing radius of the handle. I was a teenager and wearing braces at the time. Put the bracket of a top incisor clean through my lip. I had a little 1/2" square tic-tac-toe pattern scar on my bottom lip for about 10 years. I went into the bathroom to inspect the damage, and the blood filling my mouth just about made me pass out.
Just because I'm in Mensa doesn't mean I have to live up to my potential.