Yes, eating habits here really horrendous. Mostly I eat alone so it's not too bad. But my colleagues know that I am squeamish about communal eating so they use serving spoons when I eat with them. But when they eat themselves it's an awful sight to behold. I always wonder why diseases don't pass on? Even when one of them has flu the rest who eat with him have problems later. Maybe they have an inbuilt immune system that's better than ours? 

When using quaizi to grab piece of food from 'communal' dish, and stick it into your mouth, you'll bring your saliva (and all microbes) to the communal dish at your next grab.

I hate, when somebody wants to help me, and load food to my plate, after she just munched her own grab.

If man does that, I must change my dish.

Am I particular? I'm willing to change.

Yes, quite often in fact.

Spitting is bad at the best of times but seeing someone hock one up then spit into a napkin at the dinner table turns my guts inside out. Seeing half filled beer glasses with stubbed out cigarettes floating in it is also not a pleasant site. Nor is the rolled up clothes in summer.

The worst thing I can remember is a Chinese guy that was trying to show off by is baijiu drinking ability then puking up all over the floor in restaurant.

Yes, I am always a well mannered person, even my girlfriend (Chinese) who was studying in Hong Kong when we met learned table (and other) manners over there from local Hongkers and then even more manners from me, now at a table she looks down on other Chinese when they spit bones, talk with their mouth full, roll their shirts up in the summer time and so on.

Some people will tell you that Chinese invented table manners, this is false, the oldest reference to table manners date back around 200 B.C. in the Roman Empire.

And modern table manners were created in France during the 17th century.

Chinese behave like animals at a table, they jump on food as if they didn't eat for months, I understand that older people still remember how food was scarce during the communist era but young people have no excuses.

I hate sharing a common dish, it's a perfect way to spread germs and diseases, I hate it even more when someone wants to serve me using their own chopsticks that they just put in their mouth.

I only eat with locals when I have to (business or relations strengthening dinners).

Yes.
So much so that I have lost 25 kg in the year that I've been here.

In some families (my boss, for instance), people will use chopsticks or spoons dedicated just to pick things from a dish to your bowl. Then, you eat from your own bowl with your own chopsticks. That's a sensible practice. I haven't seen it very often.

Being put-off by table manners... I'm not too sensible to that, unless it's over the top. I'm the kind of guy who would enjoy a snack while watching a surgery operation.

Something that put me off is the state of a table after the meal, covered of meal remains. The university cantins are particularly disgusting, I sometime want to take pictures, and put that on walls with the caption "Are we pigs or humans ?". I guess it's cultural. Back home, I was educated so as to leave my dish almost as clean as it was before the meal, using a piece of bread to clean-up the eventual sauce, juice and the last few bits. The rational is that

1) No food is wasted
2) Hand-cleaning the dishes is a quick, easy and does not requires lots of water of cleaning product

There have been more than a few times I went on a date with a beautiful, elegant Chinese girl and then I watched her eat .     It completely changed my mood and, on a few occasions, almost persuaded me to forego the late night carnal activities.  Almost. It's really hard getting your mojo going when she eats like a hog.

I'm not sure how this relates but I often end up more hungry after a dinner out then anything even if I'm invited and I enjoy the experience. I've gotten used to stocking up the dorm with snack foods for before and after the meals out. I should pack up a snack bag for times I go out with friends to add to my eating experience. 

I do loose my appetite at times because eating should be a enjoyable time and not a race for who will get to the food first. 

I don't lose my appetite.... I do fill my face with the stuff that is easily (for me) edible....  I find my self passing on the crab, (I love crab), I have told them to forget the "beef" dish, which is often ordered for "me", the foreigner. the beef is not good and neither is the method of preparation. ..... I am rebelling after 3 years here...    just give me a PLATE of food and I will eat it.. even get seconds if I so desire. I really like dinners out and big dinners at home with family. I like Chinese (Guangdong/Cantonese/Sichuan) food..... why the hell do we have to have duck,dog, donkey chicken,pig, beef, fish, shellfish all at one meal? vegies and opening and ending soups.... and lousy white rice. if that didn't fill you up....  I eat and run, leave the table... go outside for a smoke, while they tell me it is OK to smoke in the no smoking restaurant........Rebel without a cause.

My GF ate politely and managed chopsticks better than I ever want to. Some times she chewed a little to loudly with her mouth open, but not often, I never said anything, I think she picked up on my stare. A reverse situation, I can't manage chicken bones in my mouth with chopsticks and she's OK if I use my fingers. One day after we finished eating, I picked one bean out of a serving plate with my fingers and I got,, 'no why, dirty''.......scolding.

My MIL  burps a lot during meals. It's gross but she's a nice lady so I don't say anything to her. 

I don't like Chinese food, I don't eat with locals, apart during business lunches (or less frequently dinners). I do mind very much manners at table, and I like to eat in a quite and comfortable environment, given the fact that is one of the few things you can enjoy here.