Harry Potter and the Chamber of Secrets2002

[Harry and Ron catch Lockhart packing some trunks for a hasty retreat]

Harry:
Are you going somewhere?

Lockhart:
[nervously] Um, well, yes. Urgent call, unavoidable. Got to go...

Ron:
What about my sister?!

Lockhart:
Well, as to that - most unfortunate. No one regrets more than I...

Ron:
You're the Defence Against the Dark Arts teacher! You can't go now!

Lockhart:
I must say, when I took the job, nothing in the job description--

Harry:
You're running away, after all that stuff you did in your books?!

Lockhart:
Books can be misleading.

Harry:
You wrote them!

Lockhart:
My dear boy, do use your common sense! My books wouldn't have sold half as well if people didn't think I'd done all those things!

Harry:
[realizing, outraged] You're a FRAUD. You've just been taking credit for what other wizards have done!

Ron:
Is there anything you can do?

Lockhart:
Yes, now you mention it. I'm rather gifted with Memory Charms. Otherwise, you see, all those wizards would have gone blabbing, and I'd never have sold another book. And now, I'm afraid I'll have to do the same to you--

[He grabs his wand, only to have Harry and Ron already aiming theirs at him]

Harry:
Don't even think about it.