And women often are too reluctant to end sales-pitches abruptly because it just feels impolite--despite the rank impoliteness of the knock or ring which began the pitch.
Yup—knowing when to be rude is one of the lessons.
She was always shocked when I was rude to anyone for any reason—especially since I am normally very pleasant to anyone or everyone.
But—the second I sense they are trying to take advantage of the situation—whether selling something or some other reason—I get mean and hostile in a hurry.