"I’ve h-heard, Miss Granger, about your unfortunate blood status as a M-muggle-born. I understand it is c-c-causing you some distress within Slytherin. I do s-sympathise. I too was sorted into Slytherin in my y-youth, and my true blood s-s-status unknown at first. You k-know, being a half-blood was quite d-difficult enough, l-let alone those years where I w-was thought to be a M-muggle-born. I had to f-f-face my share of bullies in my time. T-t-teach them to respect you with some well-chosen s-spells, is my advice. S-s-strictly off the record, of course. I must insist th-that you not repeat this conversation to anyone."