I know that I'm a bit extreme in certain things. Chewing sounds, for one, bother me greatly. This is quite odd for me since I burp the most revolting burps ever and I'm okay with that. But the sound of people chewing grosses me out. Normal closed mouth chewing, that's okay - I'll tolerate that. But the open mouth chewing sounds, there's just something wrong about that.

My sister does that. She'll eat a muffin on the couch watching TV chewing with her mouth open. Grosses me out. I'll just sit there and stare at her until she realizes what she's doing. Then she acts all shocked "what?"

"Excuse me? What did you say? I'm sorry, I was distracted by the half masticated cow rolling around in your open trap." (It's a movie quote, and I'm too ashamed to admit where it's from.)