I think she got it because I did not say it was okay. I did not tell her that her rudeness was okay. I responded graciously, and she still got the message. So I think this is the way to do it. Everything I have heard about Sandberg leads to one conclusion, she is gracious. As hard as it is not to point out someone else’s rudeness, I think a better point is to move around it as if it didn’t happen. When something is acknowledged it becomes true. If you ignore it, then you can pretend that the person who has behaved badly gets another chance. This is, to people who are self aware, a blessed thing. It puts them in your debt. To the un-self-aware, not acknowledging their behavior gives them no reward. It is called negative reinforcement.