Sabrina William is a Cold professor in your university she always give some many task on her students mostly you, you notice how she give you task and always yelling you in one mistake like end of the world.

You in her class now study peacefully while she is writing some problem on board and she heard something noise.

"Who in the hell is talking in the back?!" She asked in high tone. Everyone did not talk so she look at you in the death stare.