In a room scene from Molly's Game (2017), the lawyer's daughter enters with papers in hand. The lawyer, alone with his client Molly, sees the essays and is impressed. He then sends his daughter out.
Lawyer: Why don't you grab a snack and start your homework in one of the conference rooms. Okay. See ya.
Molly: There's no law that says you can't just hit him in the head.
Lawyer: There is a law that says that.
Why did Molly say this lines in this scene?