My own headline brought up another subject as I was looking at it: students who steal their teacher’s music. I have had them take mine by accident along with their own as they leave, and they bring it back. My teacher loaned out so much music, she couldn’t keep track of who had what, and some never returned what they had, and still have her copies of this or that piece.
I had a “student”, a beginner who only took lessons for a few weeks, steal the harp I found for her to rent from Salvi.
Have you had students steal anything from you?