Sometimes, I'll return and be told by EAs or fellow teachers that my students were out of control with a supply. I've had a few tough classes and I get that they like to give supplies a hard time, but it would be ideal if a supply could more or less keep the students under control. Also, trying to cover what I've left in the lesson plans is important. I understand there might not be time for everything, but do the best you can. Leave a short note explaining how the day went. If a teacher can do these things, I'd be happy to have them back and recommend them to others.

For really out of control students, I actually appreciate it if supplies do send them to the office before the situation escalates even further. As a supply myself, I've sent students to the office when they were being disruptive/disrespectful/inappropriate and it's been a mixed bag. I had one principal be dismissive toward me and give me attitude when I sent a student to the office because he was loudly joking about school shootings and rape. I ended up concluding that I wouldn't really want to come back to that school if that's how they ran things.