One day a few years ago, I was about to have a MRI and thought I had on metal on me. The technician asked me to check and I discovered a small metal screw in my

One day a few years ago, I was about to have a MRI and thought I had on metal on me. The technician asked me to check and I discovered a small metal screw in my pocket. I shudder to think what could have happened if it had not been discovered....