I will go you one better, Janet!
This morning I had my wrist x-rayed because of persistent pain. (probably arthritis per Dr.).
When the xray tech brought the xrays into the examining room she asked me how I got the piece of metal in my arm!
My reply, "What?

"
She pointed to a small white dot on the xray and said, "That is a piece of metal embedded in your flesh. Did you have a BB gun duel when you were a kid or is it recent?"
I have absolutely no idea when, where, how it got there but it is definitely there.
The Dr. said, "Does it ever bother you?" I replied, "No". He said, "Until it does leave it alone!"
Now I can't stop rubbing the darn thing!
~~~GB~~~