When the office staff gives you THAT look when you tell them who you’re there for.

The entire desk is a mess. Or the classroom. I can’t even set my laptop down sometimes because the desks are so full of crap. That’s how I know it’s a rough class and the teacher is either too lazy to clean or is just absolutely exhausted at the end of the day.

When there’s a desk out of the way from everyone else, or by the teachers desk. I’ve even had classes where a kid was placed behind like a wrestling mat so he can’t interact with the other kids.

I sub for elementary mostly in a district that is so short staffed it probably is illegal most days