It's not a state secret

Arley:
[Storming into the room]
Mr. Simonet? Eugene:
Yes, I'm Eugene... [looks up from his desk to see Arlene] Eugene:
...Simonet. Arley:
[Taken aback by Eugene's scars]
Hello. Eugene:
Hello. Arley:
What is this assignment? Eugene:
Excuse me? Arley:
What did you tell my son to make him bring a homeless man into my house? Eugene:
Uh, I have two problems. One: I have absolutely no idea what you're talking about. And two: I don't know who you are. Arley:
Arlene McKinney. My boy is in your social studies class... Trevor. Eugene:
Trevor. Yes, He's very attentive. He's very Exigent, which I like. [Noticing some confusion on Arlene's face] Eugene:
Exigent, it's challenging, testing... Arley:
I know what it means! Would you like to tell me why my kid brought a bum into my house? Eugene:
I have no idea... Arley:
Bullshit! Eugene:
Mrs. McKinney, I don't know how your son interpreted the assignment. Arley:
How do you think he interpreted it? Eugene:
Well, I don't know. My suggestion is, if you want to know, why don't you go home and talk to your son? Arley:
Hey! I talked to him! Eugene:
Really? Then why did you come all the way down here to ask me what the assignment is? [Points to the blackboard] Eugene:
It's not a state secret