Well that was interesting - my first mammogram. You know when you're getting old, when the invitation for a mammogram drops through the door. There's nothing like it for reminding you of impending old age. It doesn't matter that my son is only 8, I'm now officially old enough here for a mammogram. 
Who designed these devices? Were they designed by a middle-aged, slightly portly, slightly less flexible than she would have been in her 20s, lady? Can't have been. Nobody would design a device that has the top perspex compression plate at just the right height and angle to dig into your chin when you're getting into position.
I was expecting discomfort. I'd read about the compression process, was relieved when I was told that would only be momentary like a blood pressure test. I was even expecting some contortions to get into the correct position. But seriously - a huge perspex plate sticking either into my chin, or into the soft skin just below my chin? It was a relief when the nurse said that compression could start, because it meant that annoying plate would move away from my chin/neck!
Is it just me? There has to be a better design! How about a retractable top plate that only moves out and down when you're finally stood in the right position?
You're all now going to tell me that my nurse had it set up wrongly, aren't you ....
[/rant]