Crystal, After several years of Chairing meetings this is the biggest interupter of a meeting. These often create side bar discussions. My experience can tell you without any reservation that the answer to this problem is to set meeting guidelines up front. Agenda topics will be attained to only. Anyone bringing up something that is not germain to the topic would not be discussed. We can table it until a later meeting or schedule or meet one on one. Anytime this may occur if we have set up the rules of the meeting we can state this is not germain to the current topic and move forward. I currently Chair an Accreditation Commission with 15 members who all have type "A" personalities. It important we stay on topic.