Not exactly an injury - I was cutting a length of pallet wood into 8" lengths. Rushing to get done, the wood hit the edge of the blade as I advanced for the next cut. The poor quality wood split and a thin sliver shot off into my left hand. I've had loads of splinters over the years but as I slowly pulled it out, I was amazed and fascinated by it's depth, about 1.5"
Just like minor splinters, no blood and quickly healed