Bout 10 years ago I had carpal tunnel surgery done on both hands. They x-rayed both of my hands looking for things that should'nt be there. They called me in after the x-rays were developed to show me something. They said it appeared I had a chunk of metal in my hand. I told them they were right and that it had been in there for about 45 years. Anyway, when I was in Boy Scouts I was into rock collecting. I needed to crack this rock open and could,nt get it. So I hit the head of my rock hammer with a ball peen trying to chisel it open. That's where the chunck of metal came from. Darned near bled to death. The doctor said he was going to leave it there so it's still in my hand. Still have the rock hammer too. Soooooooooooo, I don't care what mythbusters found out, I know better!