Not a recent event. Back in 1976 when I was a 10 year old I wanted to hammer a nail into the end of a piece of wooden dowel.
I placed the nail dead centre of the end, brought the hammer up and slammed the nail as hard as I could.
The sheer pain was undescribable and sudden.
With my right hand I wiped my watering eyes to reveal that somehow the nail skewed of track and I had hammered the nail right through my thumb!

All the way through!!!!
All was well. My Mum heard me yell, and she just simply pulled it back out again