As I commented elsewhere, when a shop assistant approaches me and asks
"Are you right?"
I have several versions of smile (or lack of it) on my face when I reply
"Once upon a time, the customer was always right!"
And, if I think that's being too hard on them in the particular circumstance, I'll immediately add
"Just confused!"

My daughters, often the same age as the shop assistants, wince.

Cheers, Rowan