Dolores Umbridge: You’re going to be doing some lines for me, Mr. Potter.
Dolores Umbridge: No, not with your quill. You’re going to be using a rather special one of mine. Now, I want you to write “I must not tell lies.”
Harry Potter: How many times?
Dolores Umbridge: Let’s see… As long as it takes for the message to sink in.
Harry Potter: You haven’t given me any ink.
Dolores Umbridge: Oh, you won’t need any ink.
You know the laws, Miss Granger. You must not be seen
5 favourite screencaps from the Deathly Hallows Part 2 - Harry Potter