A: I'm sorry, but you can't borrow this book. B: What do you mean? A: You have not paid your late fees for your overdue books. B: I never had any overdue books! A: The computer doesn't lie. B: What books do I have late fees for? A: They're all math books, and according to the system, you still have them. B: Oh yeah, I do! I totally forgot about them and left them on my bed. A: Once you return them and pay the fee, you can borrow books again. B: But I really need to borrow those books now. A: I can put them on hold for you. B: Yes! You are the best.