"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. So it seems odd to me that a holstered gun would fly across the room and fire."
Not all MRIs are the same. Designs have changed significantly over the years, including the field strength of the magnets. Additionally, MRIs can be operated at a variety of field strengths.
Without knowing the EXACT specifications on the machines you were in, vs the machine in this incident, about the only think you can say for certain is that you had some MRIs.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.