Top Of The Morning To You...

I am not a morning person. People who know me well, know that, but for some reason they choose to ignore it. I need at least an hour before I have any interest in talking to anyone in the morning. This is often mistaken for rudeness, EVEN if people know I am not a morning person. So why do people just ignore the obvious? If you already know something is fact, why not take it at face value? Why do you have to so completely overlook it?