Student X: ***says something unintelligible***
Me: Can you explain that?
Student X: You're the teacher.
Me: Yes, thanks for clarifying that.
10 minutes later while I am explaining something to the class...
Me: ***rambling about something***
Student Y: Ms. Aren't you the teacher?
Me: Yes, I believe X pointed that out to us earlier.
Student Y: Just checking. I was trying to figure out why X was talking right now...if YOU'RE the teacher.