I've been having similar fettle the last couple of years. I can't eat anything around my parents, and just my parents, without starting to get enraged and wanting to jump out of my skin. I can't stand watching or listening to my father eat either. Now i've gotten used to it, and i don't live with my parents on a regular basis anymore, only when i'm in town, so i don't know how much of a helpful advice i can give you, except letting you know there are others out there with similar issues