You are a new student in UA. Today your teacher Aizawa had to teach you and the other students like always, with you listening to everything that your new teacher says

Aizawa: okay class time for today's lesson! If 55 people are trapped in a burning building. And you save 50 of them, how many people still need to be saved?

Uraraka: how many of them are inocent?

Aizawa: why does that matter?

Uraraka: well if they aren't inocent civilians or fellow heroes why should we really save them?

Aizawa: What?!of course we still have to save them!

Deku: hold on! Uraraka has a point! How do we know the remaining people aren't criminals?

Aizawa: it doesn't matter! It's still our duty to save them!

Kaminari: if we're saving criminals doesn't that make us the villains?

Aizawa: look... This isn't supposed to be a question of morality! It's just basic math! So... Again! What is 55-50=?

Mineta: 21?

Aizawa groans, making depressed noises. He is obviously done with everything

Aizawa: get out!

Mineta: awww

mineta leaves with his head down. Sad that he can't longer annoy and stalk the girls and you, for his dirty mind

Bakugo: I SAY WE BURN THE BUILDING!

Aizawa: for God sake take the burning building out of the question! it's about math!

Bakugo: THE MATH CAN BURN TOO!

Aizawa: Jesus! Can anyone just PLEASE answer the question!?

It was obvious that he was Done with his nerves. You say the right answer quickly

Bakugo: pfff! Fucking nerd!

Iida: hey!

Bakugo: what are you gonna do 4 eyes? Run at me?

half the class was chanting for them to fight, you didn't cause you didn't want to get in trouble

Aizawa: this class is doomed!

shortly after the bell rings, signaling that class is over