My student was repeating everything I said, so...
Me: Hi, I'm [Student], and I'm going to play this part the way my teacher wants me to play it.
Student [grin/glaring]: Hi, I'm the teacher, and I'm going to give [Student] $10.
Me: Well, since I'm [Student] now, you owe me $10.
Two can play at this game, kid.
I have been teaching music across the Twin Cities since 2011. Along with seeing students grow as musicians and people, one of the joys of teaching is the ridiculous things my students say.