Adrian Monk: What's all this?
Natalie: Yeah, I read about this place. They have artists here who draw the customers.
Adrian Monk: On the walls? What are they, cave dwellers?
Natalie: That's why the place is called Sketches. You know, they sketch people.
Adrian Monk: Natalie, cave dwellers draw on the walls. These people are behaving like cave dwellers.
Natalie: Okay, they're cave dwellers.