Of all the things that he could have expected, this wasn't even in the top a hundred and that included time traveling into the future having having died at eighteen. He put down the quill very carefully trying to think of what to say.
"I appreciate your concern, but I assure you that there's nothing that will scar me, either temporarily or for life," he said, calmly. "Your life was rather... mundane and I don't mean that as an insult." It was the type of life his brother thought he wanted. He doubted that Sirius truly wanted it.
"How about you? Were your memories innocent enough?" he asked, because it was polite to inquire, even though he didn't really care. "I do have a question for you if you are inclined to answer. It goes to an hypothesis I have. Do you get annoyed at my brother when he starts to sound like a child?"