A: I think your grading policy is unfair. B: I beg your pardon?! A: Why is a 90% a B? B: I'm trying to challenge you guys. A: That's not a challenge, that's a punishment. B: I've had this policy since I started teaching. A: It's time for a change. B: I'm not changing my policy because you don't like it. A: Put yourself in my shoes. B: I have been a student once, and I think my policy is fair. A: I'm going to drop your class! B: Go ahead! Less for me to grade!