Rodolphus reads over Lucius' shoulder and gives a derisive snort. "I'm terribly glad you weren't head of house when I was at school Severus. You would have had your hands full with me."
His face darkens slightly. "I'm sorry about the bloody damn fish! I hope none of you ever have a decent piece of salmon again in your lives!" He crosses his arms and sulks. "But I'm not cleaning it up."