No, but there are not too many other teachers with your qualifications in China, Turnoi-they stop short of being absolutely ludicrous. They will never actually say it to your face anyway, it comes out in essays and open discussions. I've held debates in class where half of the class must play devil's advocate. The topic is "Are foreign teachers useless and would we be better off without them??..i suggest FT's try this one. You will see that the "Fors" heavily critisise FT's for being ill-educated, beyond their devil's advocacy.

but you may be right, I don't know if I am 100% just 80%