In-class dialog, sometime earlier this week:
Prof: There is no curve in this class. Nothing would please me more than to give everyone an A in this class. It would feel like I was a great teacher.
Student: You couldn't do that.
Prof: Sure I could. I have tenure.
[very great laughter from all students]
Student: No. I meant you can't do that.
Prof: They couldn't stop me. But of course you'd have to earn it.
Student: I meant you aren't able to do that.
Prof: Oh. It was a psychological observation.
Do they know me that well already?