Quote from : Eternal Sunshine of the Spotless Mind Movie

[Patrick knocks on Joel's car window while parked in front of Clem's apartment]
Joel: Yes?
Patrick: Can I help you?
Joel: What do you mean?
Patrick: Can I help you with something?
Joel: No.
Patrick: What are you doing here?
Joel: I'm not really sure what you're asking.
Patrick: Oh, thanks...