"The balls?" Cass asked. "Rather the will, James," he said. "I don't fancy spending the rest of my life in Azkaban for killing him, I wouldn't want to give him the satisfaction. So I avoid him the best I can and greet him when I must and wait for him to slip up. I know the situation here is different, I'm not pretending they're not, but I can't let you get into a fistfight."
"I won't hesitate to pull rank on you if I must to get you to walk away," he said firmly. "James, for the last time, I'm asking you to step away and leave him for others to deal with."