Yeah, it was brutal. After it exploded, he came stumbling over to me and says "Can you stitch this back up so we can get back to work?" I took one look at it and said "*** No! You're going to the ER for that!" He spent half a day in the ER, that was just the time it took the doctors to remove chunks of grinding wheel from his neck, jaw and mouth.
When it was all said and done, he had stitches from pretty much chin to ear (just below the jaw), plus whatever they did in the mouth too.
The weird thing is, I have a scar that looks exactly like it, in the same spot, from where I had surgery as a child (lymphoma, they removed a large amount of my lymph nodes).