I lost the top portion of my right ring finger in a freak accident at a Newport Creamery when i was four years old. I, uh, lost the fingerling when my hand got stuck in a door. Y'see, me being four and all, my mom let me go to the bathroom (we were sitting in a boot adjacent to the rest rooms) all by myself. I was proud to be flying solo into the porcelain kingdom like a big boy, but, unfortunately, on my way in, a gentlemen was coming out.
Now, this normally isn't a big deal. In this case however, I attempted to keep the door open by grabbing the wrong side of the door. Normally one grabs the door handle first. I went hinged side first. This is a big no no, and will cause a small little four year old boy to cry in terror because his hand is stuck in the door. That's when mom came in. She developed a wonderful idea that involved 'pulling on 3'. Hilarity did not ensue.
In hindsight though, it was one of the best things to happen to me at the time. I was 4 and the year was 1991 (or 92), and my good behavior with the x-ray technician scored me a trip to toys'r'us, where I got to pick out any toy I wanted (gravitating towards a joker van from Batman '89) and I got popsicles. I remember eating popsicles and playing robocop on an old nintendo with my brother that night. One hand was bandaged, grasping onto a half-melted orange flavored popsicle all the while frantically trying to navigate the d-pad, while my other undamaged hand dried desperately to pound the a and b buttons to make robocop beat people up (or something).
To this day, I'm still missing the tip, which exposes about a third or so of the black of the nail. It doesn't hurt or anything, but it does make using a keyboard awkard at times. Same with musical instruments.