I never had a bone scan but I had a bone density scan (don't know if that's the same thing). I was laying there on the table and the woman was doing the scan when she said, "Oh, you have a belly button ring." I thought, "No I don't. WHAT IS SHE SEEING INSIDE ME??"
Then I realized that it was the gromet for the strings in the waistband of my sweatpants.