If you’ve been in an MRI facility, you've probably noticed a large red button in a conspicuous place. Did you feel the urge to press it? Did you wonder what would happen if you did? Maybe, but you'd NEVER actually press it – because you are not 7 years old, right? What you were looking at was, essentially, the MRI’s “Off” button. Turning an MRI off can be done in a couple different ways: one that's slower, easier on the machine, and a whole lot cheaper, but the big, red button is by far the more exciting. It even has a cool name: "quench". If you're unsure of what happens when an MRI quenches, this blog is for you!