Re: Sirius and Regulus
"I most definitely do not appreciate anything that compares us to animals or Weasleys, which are about the same thing," he said.
"Apart from Muggles being involved? How is that not enough?" he asked outraged that Sirius could really consider it. "There's Muggle involved, and you-" He couldn't even begin to explain how very wrong this was. "Just because you know, it doesn't mean that you will teach them, nor that you will show them by example. You can't, because you have never acted like a proper pureblood."
He glared at his brother, but there was no playing now. "One, we need to worry because we might be dead pretty soon. We don't have years. Two, you'd be awful. You can't even remember that other people exist, let alone children. Three, your first male child will be the Black heir. He will inherit everything we have. He needs to know how to handle the fortune, how to take care of the rest, how to marry off any female Black, he needs to act like ... like you've never done. So don't ask me what's the harm in that."