Worst experience w teacher/professor?

Let me go first: when my art teacher ripped my assignment and threw it on the floor infront of the whole class and like a few minutes later she asked me for it and in my mind i was like "BITCH YOU JUST THREW IT ON THE FLOOR??!?!?" it was my first class of the day and i was holding back tears, when i got home i started bawling like a newborn baby. If you havent been traumatised by a teacher once in your life, i envy you