I've been in MRIs quite a few times. I did not need to take off my watch, or remove the partial bridge from my mouth. The clip board the tech was useing has a steel clip, and there were quite a few steel things in the room and none were drawn into the machine
I've been in three for sustained physical injuries. Each time I had to remove everything that was metallic and get into either my underwear or that robe they give.
They even made me sign a paper saying that my tattoos could possibly become distorted from the magnet if the ink is a certain type...
My tattoos are fine.
Anyways, the story does seem off now that I think about it, because they don't TURN on the thing until you're in there. So how and why was it even on to begin with before the man even entered the room is beyond me.
Sáncte Míchael Archángele, defénde nos in proélio, cóntra nequítiam et insídias diáboli ésto præsídium. Ímperet ílli Déus, súpplices deprecámur: tuque, prínceps milítiæ cæléstis, Sátanam aliósque spíritus malígnos, qui ad perditiónem animárum pervagántur in múndo, divína virtúte, in inférnum detrúde. Ámen