Be Very Still

I had to go to a clinic earlier this afternoon to get a finger x-rayed. To make a long story short, I was out on the manufacturing floor and put my hand somewhere at the wrong time and wham, possible fracture in my left digitus minimus. It has been many years since I had to have an x-ray, and I've had them taken before when I was younger, but it seems that every time I had one the room was always dimly lit. Probably has something to do with radiation and the affect of intermingling types of radiation? Who knows? I'm not a radiologist, but I could have been. But wait, when I get an x-ray at the dentist's office the lights aren't dim there. So what gives?