Jacob Miller fought for the Union in the Civil War. He was at the Battle of Chickamagua in 1863, where he was shot in the forehead. Right between the eyes. His compatriots understandably assumed he was dead.
"When I came to my senses some time after I found I was in the rear of the confederate line. So not to become a prisoner I made up my mind to make an effort to get around their line and back on my own side. I got up with the help of my gun as a staff, then went back some distance, then started parallel with the line of battle. I suppose I was so covered with blood that those that I met, did not notice that I was a Yank, (at least our Major, my former captain did not recognize me when I met him after passing to our own side)."
Yeah, Miller received the Medal of Honor, but that was for valor shown months before he was shot. It was amazing that Miller survived the battle, and the war, and lived for another 54 years. But what about his wound? Pieces of lead kept falling out of it for the next 31 years! Read the peculiar story of Jacob Miller at History Buff.