Foreign object pulled from leg 2 times from the same hole.

This is not a UFO sighting, but something I feel is related and very interesting.  After watching a program about a man with something in his body, they extracted it and did not know what it was, I immediately recognized the object and even now, I am getting tingly just writing about it.
I was about 10 years old and sitting on the toilet.  I guess I was rubbing my calfs with my hands as I felt something.  I looked closer to find there was something imbedded in my right side of my leg below the knee.  I tried to get a hold of it with my fingers, but it was too smooth and pointy to get a grip.  My mother had a pair of tweezers close by.  I finished what I was doing and propped my leg up on the bath tub.  I pinched it with the tweezers and began to pull.  I was shocked to see this thing in my leg being so long and pointy, yet I felt no pain.  After I pulled it out, there was no blood, but only a hole.  I looked at it closely and I can remember it being very similar to a thin yet long and pointy piece of rice.  It had a gold/brown colour to it, and was very hard.  I didn't think much of it at the time as I was only 10.  the best is yet to come.
Frequently,over a couple of years, I marvelled at the hole.  I looked at it, felt it, and didn't go away.  Another couple of years, I forgot about it, then once again, I was sitting on the toilet and remembered it again.  I looked at it and saw another object in the very same hole.  I got up and looked for some tweasers.  After finally finding some, I pulled it out again.  It was identical to the one I pulled out the first time. Again, I was stupid and did not think to save the piece.
It has been about 20 years since I pulled the last one out, and still think of it.  I still look at it, but it hasn't returned.  The only thing I have left, is a grown in hole, that you still can see.  I joke about it to the people I tell and even show them the hole.  I tell them the people planting this "bug" on me, finally got sick and tired of me removing it and sending them to the sewage plant.
Date is approximate.  We have assigned a date so the report sorts to a date which is "about ten years ago."  PD