I was in China last year after 8 year in US. I could not stand the environment anymore. The people were so rude there. They push you out of the way in Supermarket. Vehicles do not stop in the intersection. They smoke in public even though there is no smoking sigh right there.
I did enjoy the food there but the service had a lot of room to improve. I thought about leaving tips but I did not want to encourage the bad service. I hope they realize that neither LV handbag nor Range Rover can make people respect you more if you acted like red necks.