I have trouble with all these things, Bill D. It's an excellent and thought-provoking list. Remaining unprovoked in the face of fierce attack (justified or not) is hard. Everyone has a snapping point, but some explode more quickly than others. And as you say, assessing the battle-worthiness of an opponent isn't easy either. Is one being patronising by ignoring the barbs, or should one engage and be more honest and up-front? Patience, common sense and respect are perhaps good watchwords. But in spite of my age, I know I still have oodles to learn (and not much time left to learn it!) Mudcat lately has demonstrated that all too clearly.