The other week I had a woman come up to me in a fabric store and ask where the needles were stocked.
Not a problem, customers in those places are often quite chatty and helping each other out with stuff.
I smiled and said, "I have no idea, maybe a couple of rows down by the thread."
She glared at me and said, "Well why the hell don't you know?"
Say what now?
I just turned to her and said, "Well why the hell don't you know either?" then walked off.
I can understand getting confused sometimes, but when I'm sitting there flicking through pattern books and not wearing a big ugly polyester smock, you'd think it would be pretty clear that I didn't work there.