"I never thought that Death Eaters would make the best teachers," he said with a grin.
Regulus nodded. "I knew that he has impersonated Moody, but I didn't know about his creative curriculum." He looked at Severus. "I don't think Remus can cast the Unforgiveables. I don't think any of the staff knows how to cast them... besides the obvious. Flip a knut and tell me which one of us should do it, although I don't know if that's a good idea either, because they won't respect their professor if he can't cast them, and... I don't think it's a good idea to teach Remus."