CLOSE ENCOUNTERS WITH THE RUDE: The universe offers periodic reminders of why we must keep using those good manners our parents drilled into our heads, even after we grow up. My reminders come from encounters with rude people, from which I go away hoping no stranger ever remembers me that way. Today's close encounter with the rude came as I waited, pregnant belly prominently displayed and whining two-year-old attached, for the Sam's Club clerk to verify that I had paid for the one item I held in my hand -- when Mr. Rudesby jumps in front of me and hands the clerk his receipt. Had I not been trained to be polite, I would have made several choice remarks to him. But being a lady, I took the next turn, got in my car, and vented my wrath by politely letting a Suburban into traffic.