Just Lori had the best (= most useful) response in the thread.
As for any interesting assumptions on the OP's part, they're not exactly outlandish based on what Cart Woman herself said. Yes, the OP made an assumption, but not an outrageous one, and doesn't need to be beaten over the head with it. Considering the circumstances, it may have been better (= more useful) for concerned posters to agree that yes, Cart Woman was horribly rude, perhaps sympathize a bit, and then point out, gently, the Assumption.
When one is trying to make a point, the proverb about catching more flies with honey may be helpful.
With that, thread closed.