"Thank you for your cooperation," Harry forced himself to say. Goyle honestly hadn't done anything wrong, much as it pained Harry to admit as much, so he had to remain polite. The whole visit had been an exercise in futility, and he'd have to go visit Mrs. McHavelock now to impress the importance of not filing false reports with the Auror's office. His day just kept looking brighter.
Harry frowned back at Goyle, then nodded. "That's all." For now, he added silently. He didn't trust that Goyle was completely reformed, and would be keeping an eye on him nonetheless. "Have a good evening." The last was said with complete insincerity which even Goyle couldn't miss.