I took APUSH last year.
My teacher was pointing out how unprepared the class was, and used my friend and I as examples since we were talking, and joking around...
It was great...
He said I was going to get a 5, easy, since I have a memory like that, and used some example of how I mentioned something he said months ago, and connected it to the lesson that day, then said my friend was gonna pass because even though he didn't do work, he was smart.
All the kids who didn't have our teacher last year were just staring at us.