My comment when a "know-it-all" or heckler has been in the audience is to ask for all questions/comments to be held to the end (and for those who think of things as we go along to jot them down so as not to forget them) as we are using a tight time frame and the evaluations they will be asked to fill out cover the entire lecture. There is planned time for questions after I am through. Have had to repeat it twice occasionally, but the message gets through eventually. Then during question time, call on others first..... :-) Karen Zeretzke, MEd, IBCLC Baton Rouge, Louisiana [log in to unmask]