Hmmm... maybe it's in reference to skipping the opportunity for sly or fluffy dialogue?
Take 1:
Detective: Where is your brother?
Sister: 1420 Chesdam Street.
Take 2:
Detective: Where is your brother?
Sister: Who wants to know?
Detective: Uncle Sam does. Don't fool about now. Where is your brother?
Sister: This isn't about that robbery last night, is it?
Detective: I never mentioned the robbery... maybe we should be asking you some questions instead!
Sister: It's just what I heard from his friend Alex. My brother is staying with him.
Detective: And where can I find this Alex?
Sister: Chesdam Street... 1420. (sob)
Well, clearly I am no screenwriter. But one of them played it out a bit, while the other got straight to the chase.
Just a thought.