Before Rosmerta could tell the uppity blonde that yes, indeed, she had been to Moulin Rouge, that in fact she knew the can can had been a provocative couples dance long before it ever became something performed by the mid-level courtesans that danced it at the first cabaret. And she knew all that because she had been there, because that area of the world was hers.
But the woman asked her sniping question and wandered off, essentially taking her ball and going home. Rosmerta looked at the cowboy and deadpanned, "Was it something I said?"