Politeness is so ingrained in Americans that sometimes they will respond with the polite formality before realizing that their politeness might seem a little out of place. In the American television show “Scrubs: Med School” the main character, a med student named Lucy, complains to her teacher that she doesn’t feel like he’s trying to teach her anything. The teacher tells her that he’s not, because he doesn’t waste time on people who won’t succeed. Her response to this was “Thank you” before walking off and criticizing herself for thanking him.