I've had too many xrays to count (and yet I've never actually broken a bone!) but I do remember one situation in particular.

I had been in a car accident (a woman ran a stop sign and plowed right into me as I was moving at bout 35 mph). As a result, I was strapped to a back board with a neck brace and all the other precautions. I'd been waiting a long time because there was some other bad accident that night and the e-room was slammed. They rolled me into the x-ray room and I sat there for awhile, strapped to the gurney, alone. Eventually a couple of techs came in and I was begging them to let me up to pee. I had to go when I'd left the office 4 hours earlier but didn't want to have to go back in to the building and ride the elevator back up to my floor, so I figured I'd hold it. HUGE mistake.

Anyway, I was begging to go pee and when they clearly wouldn't comply, I started begging for a bed pan. I swear that they all thought I was insane but I was in so much pain (and not from the accident)!

I still ended up having to wait over an hour for a doctor to release me even after they were done. When I finally did get to pee, it was such a relief that I started crying while on the toilet.