Harry Potter: Professor, we have some information for you. Are you going somewhere?
Gilderoy Lockhart: Well, yes. Urgent call. Unavoidable. Got to go.
Ron Weasley: What about my sister?
Gilderoy Lockhart: Well... As to that, most unfortunate. No one regrets more than I.
Ron Weasley: You're the Defense Against the Dark Arts teacher. You can't go now.
Gilderoy Lockhart: I must say, when I took the job, there was nothing in the description about...
Harry Potter: You're running away? After all you did in your books?
Gilderoy Lockhart: Books can be misleading.
Harry Potter: You wrote them.
Gilderoy Lockhart: My dear boy, use your common sense. My books wouldn't have sold half as well if people didn't think I'd done those things.
Harry Potter: You're a fraud. You've been taking credit for what other wizards have done.
Ron Weasley: Is there anything you can do?
Gilderoy Lockhart: Yes, now you mention it. I'm rather gifted with Memory Charms. Otherwise, all those wizards would have gone blabbing. I'd never have sold another book. In fact, I'm going to have to do the same to you.