I spotted this thread when I first joined up a some days ago, now I uhhhhm, finally got summink to add -
... Heheh, so.., whilst trying to 'part the sides' of a rigid box mould yesterday, after a casting had gone haywire (foamed up and took days to set and gummed up all the mould) using the bottom knife in the picture below, well it slipped between 2 parts of the mould as they finally separated and stuck in my left hand tip first... with quite a lot of pressure. Luckily it didn't have far to go as the bone from base of my forefinger joint to the hand itself, was only a few mm below where it hit, and stopped it dead. Checked the knife tip to be sure there was no little bit of carbon steel missing but it was OK, but I bled quite a lot... heheh...
Did I mention the blade and tip had recently been diamond honed to 1000 grit, then stropped and polished with 5 micron green chromium compound?
I love my sharp knives and chisels etc. but they are my hands' nemeses for sure.
So, not as bad as yours but coulda been a lot worse, and it's my worst 'casting' related injury so far, heheheh...
Be well AND SAFE folks ',;~}~
FlowolF