I was working on an old Ariens snowblower a few years back. It was covered with so much rust that I felt like I needed a tetanus shot every time that I used it. It was running rough and I figured that I needed to make some adjustments to the carburetor. In the process of doing this I had to disconnect the fuel line. I thought that I had shut off the gas before I pulled the line, but apparently I neglected to do that. When gas came spilling out it startled me so much that my hand just automatically jerked upwards and banged into the machine. After I shut off the gas and cleaned up I noticed that my thumb looked odd. Closer inspection revealed that a thick shard of rusted metal had impaled itself into my thumbnail. It was imbedded through the nail but didn't touch the surrounding skin, which is probably why I didn't feel too much pain. I knew that going to the doctor or the emergency room would be a royal waste of time because they wouldn't do anything for it anyway. But they would charge a ridiculous amount of money that would come directly out of my pocket. And my high deductible plan wouldn't reimburse me for it. So screw it. I pulled the chunk out with a pair of pliers which removed the vast majority of it. But there was still a significant amount of debris imbedded in the nail and the flesh underneath it. So out came my old Black and Decker dremel with the flexible cord. I have a microscope at home that I looked through as I used a sterilized grinding arbor in the dremel to very carefully grind through the thumbnail. No painkiller for this either. It wasn't pleasant. Then a sterilized sewing needle was used to get the little pieces of rust out of the remaining nail and underlying flesh. It was a nice bit of dremel surgery. I even took some photos of it afterwards. I'll see if I can find one and post it. The end result was that it never became infected, healed completely, and since the nail has grown out you would never know that I was ever injured.
Maui