What’s a habit that you absolutely hate in people?

I just hate when they make sounds when eating with open mouth, I feel like not eating anything, it grosses me out a lot, I don’t know why. It also causes aggression in me, if I concentrate on it too much, I might feel like slapping someone.

Of course, I’ve never done or never would do it and thankfully, it happens very rarely when I dine with someone who makes such noises. But whenever it happens, I just try to concentrate on something else, cause If I keep listening I just feel disgusted.

Sadly, lots of Chinese people eat that way.

Why do people not close their mouth when eating?

Updates
+1 y
That seems to be Misophonia.
What’s a habit that you absolutely hate in people?
Post Opinion