And she knew all this after speaking to him - well, listening to him and watching him - for a half an hour. What did he call himself? A Time Lord? Were all of his people like this?

Uh. Oh boy. Look, Tonks, sweetie...

“Poltergeist!” The Doctor looked around eagerly.

GAH, Doctor, no! You know not what you're inviting!

“Which way is out? So we can Apparate.”

I bet he read all about it in Hogwarts: A History. *snerk*