"Sir?"
"Yes, potter?"
"There must have been something…rewarding I suppose, something that made you want to join. What was it?"
"The very first night, right after all of the new recruits wake up from the pain there is a spell we must learn. It is taught to us by our own minds. Our teacher is the most beautiful sight in the world. My sight started as bright blue butterflies and they came together to form the most beautiful person I have ever seen. I would pretend to forget that spell all the time just to glimpse that person."
"You joined to see that beautiful person?"
"Yes."
"Why did you leave?"
"My beautiful person took shape in front of my eyes."
"Who was it?"
"I'm holding him."