I played [math basketball] today in class. Class versus the teacher. When I told them I never lose, this was all the motivation they needed.
This kind of hyper-authoritative faux-confidence informs at least 50% of my student-teacher interaction, letting me acknowledge to them that, yeah, I realize this particular lame-duck teacher is real, that I don't like them any more than my students do, letting me have some cake and eat it too. We get along.