> The problem is that if you don't like it, you really don't like it. Meanwhile, if you don't mind it, people who do seem like jerks.
It's more like how you say it. "Hey Buddy, if you don't stop slurping, I am going to chew and then open my mouth wide to show you my handiwork." is very different from "I am leaving. You are so rude."
> The disgust is visceral, and hard to rationalize away.
The keyword is "friend" - someone who you can talk to; asking him not to do that as it is making you uncomfortable should be pretty easy.
It's more like how you say it. "Hey Buddy, if you don't stop slurping, I am going to chew and then open my mouth wide to show you my handiwork." is very different from "I am leaving. You are so rude."
> The disgust is visceral, and hard to rationalize away.
The keyword is "friend" - someone who you can talk to; asking him not to do that as it is making you uncomfortable should be pretty easy.