Everyone has their quirks, their ticks, or their pet peeves. The things that just set them off the edge when they experience them.
For me, it's hearing people eat or chew. It drives me up the wall and sometimes I have to leave the room.
Someone (probably the devil incarnate) decided to make a video of the most unsatisfying things in the world. Trust me, mission accomplished.
See if you can make it through the entire video without cringing or turning it off. I barely could.