With the exception of illness or the occasional bratty spasm over a disliked food as a child, did you ever "have to spit" in your life? I thought not. Do you know any females who feel they have to spit as a necessary function of life? No, I thought not. So please disabuse the boys in your life of the idea that this is - as they truly believe it to be - necessary. It is not. It is disgusting.