Scabbers : I feel happy today!
Wormtail : No you're not. You're miserable!
Scabbers : No, I really am happy.
Wormtail : No! I don't feel happy. I'm SAD. How can YOU be happy? We are ONE, in case you haven't noticed.
Scabbers : Errmm... Yea, maybe I do feel a bit sad. But still..
Wormtail : I don't get you.
Scabbers : I know. I don't get myself either.