I took this picture in New York a few years ago. It's vital to have a sense of humor when dealing with students.
I was one once myself.
And may, one day, return.
It's interesting to be on the other side now. Clamoring for their dedication and attention. It'd be easy to get all hellbent and hurt when they blow you off or act like gargoyles in the back of the room, hating you because you're actually making them think.
But, I have a sense of humor, too.