 And I said, can I see you after class? He said, okay. And I went in and I said, look, when you do this and you do this, I don't understand what happens here. And he said, well, didn't we cover this in class? And I say, yeah, but I don't understand it. Well, I'm not going to cover anything that we covered in class. I don't want the hell. What am I supposed to be asking you here? You said we had questions. We come up. Well,