The title is a joke but I did have to sit for a certification exam today and I had my gun on me. They make you put all your belongings in a locker and then check you with a metal detector. My thought was well this is going to be an interesting conversation. But the detector didn't alert with my Glock 17 on my hip. My first thought is that the detector doesn't work and is just for show. Surely with the barrel, slide and bullets there is plenty of metal to alert on; otherwise, I guess you can take plastics guns thru metal detectors.