I have been in some rather nasty places around the world, but the MRI is the ONLY thing that have ever freaked me out! I laid down and they stared to "drive" me in.... My head was barely in before I pushed the alarm
Tried again, and that time I made it. It is no pain, just noise. You get a headset on with radio or whatever. Once you relax, it is ok, but HELL it was scary at first!
LOL, I remember I was worried that the fillings in my teeth would pop out :D