True! I've only heard of that one though, haven't personally witnessed it though. It seems to me the practice of spitting is more common up North than it is in Shangers.
Ooh! Ooh! I've got another one!
Since Shanghai denizens just love wandering in public in their jammies, do you see them in the gym with their PJs?
Also since lining up is an alien concept imported in China just like opium, do you see a great mass rushing and barging to use the equipments and the bathroom?