1) Don't come, the pollution may kill you and your family.
2) Chinese food may do irreparable damage to your DNA and that of your
offsprings.
3) Say a wrong thing and you may end up in a Chinese gulag up north.
4) You will get ear ache from the endless whinning and whinging of expats.
4) You may run into fooeys and some insurance sounding guys who may
drive you mental with their aryan thingy....etc