I tried to keep a straight face, but I failed.

Student 1: Were you a straight A student, Mrs. S?
Student 2: Don't answer that! You know you have to lie! It's like, in your contract!
Me: What do you mean?
Student 2: You know, you have to tell us you were a perfect student to like, motivate us. Kind of like when you tell me I "could be doing better". We all know it's a lie, but you have to say it anyway. It's your job.