Fights are an almost inevitable part of high school. No matter how hard teachers and administrators try to crack down on altercations, there will probably always be a few fights. But one wise educator (or just a bored spectator) discovered the perfect way to break up a fight.
He connected his computer to a loudspeaker and put the speaker out the window. From there he blasted the sound of a police siren, and just as he suspected, the students fighting quickly dispersed. He’s a few stories above them, and it seems odd that they were startled by a police siren from above, but whatever works.