Possibly very silly question. I teach in a school and we are obviously not allowed to be on phones in lessons, no exceptions. If there’s an emergency people would have to contact you through school landline. However, this week one of my teen sons is going through something tricky and I have occasionally been secretly looking at phone which is in desk to check he’s ok, got to school ok, and replied to a couple of messages. I’m not using school wifi. I assume there’s no way they’d find out?! I have a new boss who I don’t trust at all so it’s making me more paranoid than usual. Obviously my students could dob me in but I think I’ve been subtle!