"Yes. Yes I am." You say. "Look I'm sorry I've been trying to not get expelled all year but I'm just so sick of this place almost no one likes me anyway. Please don't tell on me?"
He signed. "Fine. Just make sure Mrs. Dodds dosn't see you. Whatever she can think up is even worse then expulsion."
"What are you guys talking about?" Grover says. It looks like he's almost finished with his apple and is paying attention to us again.
Do you tell Grover? If you don't he'll probably be suspicious of you anyway and if he sees you sneaking off later it might hold you up.
Or lie.