In my class last night, the night coordinator came in to give my students the evaluation. Yeah, the evaluation of the class and of me so I can't be in the room. Anyway, the night coordinator has a power wheelchair.
So after he left and I walked back in, one of the students made the comment that he had a wheelchair, "And they call him 'wheels.'"
I said, "Just like Professor X."
He was so excited that I got the joke. Even more excited was another girl, who did her fingers in a heart like this for me.