"I would say that what I did before becoming a professor has very little to do with how I teach," she said. "It's a shame you think the two are correlated. Maybe you would learn be a better student of life if you opened your eyes some and questioned the fallacies your family has taught you."
Detention at the very least, and depending on how far this went, she might send him to Minerva. But Tonks liked to handle her problems on her own without pawning them off to others, and she thought she could handle him on her own.
"So," she said. "Unless you want me to spend the night leaning up against the door and doing the 'I need to wee' dance, do tell me what you're doing out of bed at this hour."