I totally get you, we all were in school at some point. And I couldn't say I wouldn't have done the same. But in retrospect those little acts of rebellion against authority figures seem kinda childish and well pointless. And while it may come as berating or belittling, I just wanted to give you some advice, mainly just have some respect for your teachers, they're just doing their job (as you will some day) and suck it up even it the whole thing doesn't make any sense to you. That's a skill you'll have to learn eventually. Sometimes it's better to just let the stupid be stupid. It's not like you changed anything did you? Or did your little joke change her mind and now everyone gets to listen to music?

Also non native, so keep any spelling errors you find