Draco and Luna
"No, of course not," Draco answered, obviously annoyed by the question. He wasn't stupid. The mist would continue to generate, thus forcing the mist outside to rise or spread out or go somewhere. He moved back to the furthest corner of the small room, giving them both space from one another. Someone would come soon. Draco glanced at his watch. If someone didn't come in ten minutes, he'd think of something else to try. Could he charm the smoke to form letters? He wasn't at all convinced he could - but he had ten minutes to think of something better.
He rolled his eyes at Luna's question, but bit back the sarcastic reply that jumped immediately to mind. "It's fine." It had been pleasant enough. Any unpleasantness wasn't the fault of anyone involved in organising the ball, nor any of the guests. "Or it was, until the charms misfunctioned." That Draco could certainly have done without. "Were you leaving?"