Callum didn't know who the hell these people were, or what the hell they'd been smoking, but Alastor would know about it, and fucking quick. However, the first thing to do was defusing the situation, because if things got any worse, there would be a lot more screaming, and that wasn't good for the dragons.
He stood up, standing behind Charlie and put a hand on his back. He'd pieced enough bits of conversation to know that this was Charlie's family, not that the hair hadn't given it away. "We can't really feed your family to the dragons. It doesn't go with the protecting thing," he said softly.
Stepping forward, he looked at everyone. "I don't particularly care about who you are, but you need to leave now." He looked at the kiddies who were dressed in drags as well, which meant they knew about this. They'd be really sorry about it in the morning. Flying drills under the rain did wonders for discipline. "Whatever you people think you're doing, you can let us know by owl. Now, good night."