Multitasking
I remember I was in the middle of math class when all of a sudden, we all heard loud barking and faint screams in the background. My teacher kept going back and forth, checking up on what was happening while, at the same time, trying to get back to solving math questions. At one point, our teacher broke down in the middle of teaching and revealed that her kitty got mauled by the dogs. It scarred me to this day because of how loud it was and how everyone was freaking out.
Story credit: Reddit / lalavieenrose10