I once saw a paper, then lost it, I wish I could find it again, that had kind of a satirical tone, it was about teaching and went something like “how to be liked by your students without teaching much”

I have nightmares about this. I hope my students like my classes and also learn stuff, but I’m really never sure. Some like the classes, some learn stuff, but, am I optimizing for them liking the classes while learning less?