"If they're not interested they're foolish," he said with a smirk. "They will be. Let Severus know and he might just make it mandatory," he added with a smile.
He shook his head when Remus said he had no patronus form. "I saw you chase away Dementors and there is no way you'd do that without a corporal patronus," he said. "You might never had made it out, but it must have been there."
He smiled. "I'm glad you're happy enough to do one now."