(Portland, OR) -- A Portland stand-up comedian is pleading not guilty to a misdemeanor charge of assaulting a federal officer during demonstrations downtown. The Oregonian reports 24-year-old Christian Burke, who performs under the stage name Creme Brulee, appeared in court yesterday. He's accused of throwing a rock toward a federal police officer during protests on August 22nd. Burke has agreed not to participate in any counterprotests as part of the conditions for his release pending trial. U.S. Magistrate Judge Stacie F. Beckerman was hesitant to impose the condition, saying it was arguable a violation of Burke's First Amendment rights. However, she accepted Burke's waiver of the right as part of negotiations between his defense lawyer and the prosecution.