Ouch! is right! I just did the same thing to my left index finger at the nail level....with my longarm! I said a few choice words but pulled my finger back just in time to prevent a "bone stick"...and didn't get any blood on the quilt I was working on! Ripped the nail (of course) and I have a black hole where the needle went in...but I'm happy! Guess I need to invest in a needle guard for my machine, huh!