Lucius felt a smile tease at his lips but he tried to keep his expression serious.
"Well, I shall leave that decision in your two hands. Although, it would be prudent not to mention your plans to your aunt, as she was the one who spiked it. I expect I will see you later?" he said, and then he made a motion to leave, "Excuse me, Draco, Pansy. I need to go find a goblet of wine for your mother," and he stepped away from his son into the crowd of students.