Ha ha...Cindy.
Yes, pointer finger, right hand. OK, I would say "promise not to laugh," but....

So, you know on swingsets the see-saw looking things? Know those big plasic guard things on the hinges where they attach to the frame? Yeah, well...those guards didn't always use to be there!

For some reason, I thought swinging it from the top was a GREAT idea.

Not so much.
I think I was 13, 14 at the time? Felt it and just thought I'd pinched it--that was about what it felt like. Turns out it had severed the nerves so bad and so quickly, that I didn't have any left there TO feel anything. Ended up having to have a pin in my finger to fix the bone and had to have the rest sewn back together. By the time they reattached it, the blood in the tip had started and there was no circulation. Thus, they put medical leaches on the end of it to suck out the congealing blood and restart circulation. Nasty, but it worked, so no complaints. Still can't feel a darn thing in the end of that finger though...so that's always the one I offer up for any bloodwork.
I can say that I have a pretty wicked looking fingerprint now though.