Saturday I had an MRI because I'm old and decrepit.
As I am lying there on my back with the headphones on trying to ignore the fact that this machine is making noises like it is going to explode at any moment, I notice something directly above me: a small placard above two little tiny miniscule light fixtures:
"Laser Aperture: Do not look directly into beam"
I was particulary impressed with their ability to park my head so precisely as to put me directly under the aperture, so I can't help but "look directly into the beam."
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