Recently went through an airport scanner arch and of course set it off. Rather toothsome young security guy just looked at me and said "Hips?".
I'm so used to having to explain why the alarms screech that for a few moments what he said didn't register and I just stood there, mouth agape.
Then I said "Oh, yes, sorry" in the usual British manner, and spent several minutes thinking "How did he know? Can he tell by the way I walk? Is it just the most likely at my age? Do I really look that old? Or does the screen show details of people's metal bits?"
I was so busy contemplating this that my daughter had to grab me and point me at the trays backing up on the conveyor belt with my stuff in them.