You do not owe the students anything. You should not work for 12 dollars and hour, you are getting ripped off. However, naming and shaming is good.

I 'm not trying to be a smart arse, just saying you can do a lot better.

One think to remember: never ever go easy on a woman just because she is a woman. Not saying you are, but most laowai in China are reticent/hesitant to go after Chinese women who do the wrong thing.

They deserve no special treatment, and if any of their family members support them or help them they are guilty by association.

I used to enjoy threatening shitty Chinese people and sensing their fear.