https://www.youtube.com/watch?v=bSbdlsIccnM
I flew for 6 months in the region and came across the following:
A mainlander commiting suicide by strangling himself with his own belt in the forward toilet. Next flight/sector was mine!
In the region of USD20,000 found dumped in the toilet.
A family of pax stealing bits of the aircraft as compensation for delays.
Flying in China is not for the faint hearted.