Slirping soup? It's disgusting.?

while it IS annoying, depending on where the mans from( or he just might have bad manners) slurping is actually a polite way of showing the chef that the food is good. In some Asian cultures, you are considered rude if you do not slurp. Eating quietly is not good. If you eat quietly they think that you think the food is not palatable. This is not to say eat with your mouth open. It is not. Just when eating soups or noodles.