If I were a teacher, I’d know not to abandon my job to see a concert. If the job sucks so bad, don’t take it when it’s offered. But if you do take it, don’t try and justify bailing on it because you are underpaid.
“Sorry, I can’t come to the concert. I have to work that day.” That’s what an adult says in the same situation.
So, no. I think I won’t fuck off. Maybe grow up and learn how to talk to people that you disagree with.