A: You need to try harder in school! B: I am doing well in school. A: Then why are your marks in science so low? B: I don't understand science, that's all. A: Is that the same reasoning you have for math? B: Yes, and English, too. A: Tell me one single subject you're doing well in. B: Well, I'm doing wonderfully in my music class. A: What about history? B: Only the parts about Woodstock. A: That's it! You're grounded! No guitar for a month. B: Great, now I'll surely have a low GPA.