I know I've said it before and I'll say it again before this life is over: COVER YOUR MOUTH! I mean, what does it take, people? Last month I was working at a writer's conference, handing out papers while waiting for the speaker to begin. As I passed a man - a grown man in his 50's - he lifted his hand to receive the paper I held out, then he opened his mouth, WIDE, like a lion, and let rip a long, loud yawn. Right into my face. I could see all the way to Cincinnati and I'm not even sure I know how to spell that correctly. I got a glimpse of the man's tonsils, his larynx and his duodenum. I might have counted his fillings had I not turned hastily in disgust. Really, there's not much to it. Lift your hand, cover your mouth, rinse, repeat. This simple act of civility does not take effort, education or angel investors. Just simple etiquette and dignity. So, next time you yawn, do as my very proper mother always said: cover your mouth!