Nathan stopped himself from saying anything more and turned around to face the new muggle professor. Merlin...why him? Ever since Professor Stewart been replaced by this older man, muggle studies weren't as fun anymore. He wanted his pretty muggle professor back. Not this...stickler of a man standing in front of them.

He said what now? They didn't do it! Why would he want to clean up the mess someone else's has made? It wasn't his problem.

His face hardened and became expressionless. "What if we refuse, sir? I believe we have done nothing wrong. The spray paint isn't our doing." He drawled.