A discussion is being had in front of the counter. One of the two is discussing how his wife was once dissed, and that she has never let him forget it.
He turns to me.
"Are you married?"
"Yes," I say.
"Then you know what I'm talking about."
And I do not open my mouth and say, "No I don't, because I married a sane and rational person."
Because sometimes, good customer service is not telling the customer that he's being an asshat.