Vivian: What will your first step be?
Philip Marlowe: The usual one.
Vivian: I didn't know there was a usual one.
Philip Marlowe: Well sure there is, it comes complete with diagrams on page 47 of how to be a detective in 10 easy lessons correspondent school textbook and uh, your father offered me a drink.
Vivian: You must've read another one on how to be a comedian.