Ravenclaw: I made tea.
Slytherin: I don't want tea.
Ravenclaw: I didn't make it for you. This is my tea.
Slytherin: Then why are you telling me?
Ravenclaw: It's a conversation starter.
Slytherin: That's a lousy conversation starter.
Ravenclaw: Oh, is it? We're conversing. Checkmate.