"Notify me when your keepers are ready, and I'll ensure the defenses are lowered enough to let the dragons out.
If it's all the same to you, I'd rather they were brought out late at night mid-week, since that's the least likely time for wandering miscreants.
He hadn't been hopeful about winning more long-term harvest rights from the dragons, but it had been worth a try. He'd get what the dragons had shed while at Hogwarts, which was the minimum he would have settled for. So he nodded, "That seems an equitable arrangement."