If it's intolerable, run rabbit run and don't look back. Most such dreadful employers in China do not dare to make troubles for foreign teachers who have been found to have departed in secret.

The trouble is, in my experience, most FT moonlight flitters have such a low tolerance threshhold. I think it wiser to advise them to not act like snivelling young prima donnas and finish what they started. You develop self-respect and a strong character by putting up with a bit of grief and riding it out. Don't live your life by being a pansy. I'm sure my new chum, San Mig, will wholeheartedly support my approach? Not that he's a pansy, he just usually disagrees with me before the ink is dry.