Angry at the sounds of chewing?

It's called misophonia. I am wondering how common it was. If anyone else has it. I was eating pizza earlier and a friend/roommate ran up, grabbed a slice and started eating. He was chewing and smacking his FUCKING lips together making the most obnoxious sound as he was eating and licking his lips/around his lips. I literally was filled with so much rage that I had to leave the room and go to a whole other section of the house because I literally wanted to smash his face and break his jaw with my fist or a baseball bat. I don't understand why a human being can't be evolved enough to eat civilized and quiet. It's so easy to chew and not make a mess like a mentally disabled toddler. Anyone else experience this rage over this kind of thing? I'm still angry, I take this way too seriously it's like there's a part of me missing that is supposed to know this is okay and not some kind of threat, but I'm sensitive to alot of sounds. This one just bothers me the most.