How we cite our quotes: All quotations are from Harry Potter and the Chamber of Secrets.
Quote #1
UNCLE VERNON: I should think you'd be a little more grateful. We've raised you since you were a baby, given you the food off our table even let you have Dudley's second bedroom purely out of the goodness of our hearts.
Oh, yeah. Nice families are always telling you how grateful you should be for the food and shelter they give you. Geez. Uncle Vernon really is the worst.
Quote #2
DOBBY: Dobby had to punish himself, sir. Dobby almost spoke ill of his family, sir.
HARRY POTTER: Your family?
DOBBY: The wizard family Dobby serves, sir. Dobby is bound to serve one family forever.
Dobby doesn't really have a family—he's just forced to serve a family forever. They're not his relatives and they don't have to treat him nicely. Harry can kind of relate.
Quote #3
HARRY POTTER: See why I've got to go back? I don't belong here. I belong in your world, at Hogwarts.
Harry has never felt at home with the Dursley family. They might be his relatives, but he's always identified more with his friends at Hogwarts. They're his true family even if they don't have the same blood flowing through their veins.