According to historian Max Domarus, Hitler insisted on absolute silence when he delivered his monologues. No one was allowed to interrupt or contradict him. Magda Goebbels reported to Galeazzo Ciano: "It is always Hitler who talks! He can be Führer as much as he likes, but he always repeats himself and bores his guests". Ian Kershaw reports: Some of the guests—among them Goebbels, Göring, and Speer—were regulars. Others were newcomers or were seldom invited. The talk was often of world affairs. But Hitler would tailor the discussion to those present. He was careful in what he said. He consciously set out to impress his opinion on his guests, perhaps at times to gauge their reaction. Sometimes he dominated the 'conversation' with a monologue. At other times, he was content to listen while Goebbels sparred with another guest, or a more general discussion unfolded. Sometimes the table talk was interesting. New guests could find the occasion exciting and Hitler's comments a 'revelation'. Frau Below, the wife of the new Luftwaffe-Adjutant, found the atmosphere, and Hitler's company, at first exhilarating and was greatly impressed by his knowledge of history and art. But for the household staff who had heard it all many times, the midday meal was often a tedious affair.