Frankfurter's argumentative style was not popular among his Supreme Court colleagues. "All Frankfurter does is talk, talk, talk," Chief Justice Earl Warren complained. "He drives you crazy." Hugo Black reported that "I thought Felix was going to hit me today, he got so mad." In the Court's biweekly conference sessions, traditionally a period for vote-counting, Frankfurter had the habit of lecturing his colleagues for forty-five minutes at a time or more with his book resting on a podium. Frankfurter's ideological opponents would leave the room or read their mail while he lectured.