This is my remember-when-I-smashed-my-finger-with-a-jar-of-jelly finger today:
I never thought about damage to my nail, but there's that odd discoloration at the top. What looks like a white line in the sort of middle is actually a dent. Who knew?
One day when I was little, I had a metal swing set that looked something like this:
Mine, though, had two swings instead of a swing and whatever that disk thing is. ANYway, one day I was standing on the crossbar next to the seesaw, pushing the seesaw back and forth by holding it at the top. There was a big bolt, hinge thing fastening it to the top bar, and my left middle finger got caught up in there. Long story and lots of yelling and a mad dash into the house later, the nail on that finger came off. Weird, but I only remember it happening. I don't remember it being tended to or how it healed --- only that really bad pinch.