Patent cases may not make the most exciting arguments for public observers in the U.S. Supreme Court, but on Wednesday they became the forum for a rare public outburst over one of the Roberts Court’s most disliked decisions.

After Carter Phillips of Sidley Austin finished his argument in Octane Fitness v. Icon Health & Fitness and moved away from the lectern for his opponent’s rebuttal, a young man in suit and tie stood in the center aisle at the back of the courtroom and shouted: