Even a Dremel can be dangerous
Well, that sure tops my list. I have stuck a 1/16 drill bit into a finger as well but not nearly as bad as that.
Oh yeah, I also found out some years ago before I could afford a drill press and vice that you don't hang onto a prop while drill out the hub. Fortunately, I just got a bit of a nip rather than being bitten.
In the grand scheme of things, I was lucky and can't really complain. After sitting in casualty for a couple of hours, you realise that other people are having a much worse weekend than you.
Garrett