Aside from anything else – we spoke in Chinese which despite being here a year you don't understand and can't speak.

How can that possibly matter, or be considered a reflection on wc's teaching methods? Yes, it is useful to learn the language and use it, but not everyone can or has to do so in one year. I personally preferred to take my time and only really got to speak it well around 2 years after, not everyone is hugely gifted at languages, nor can I see how it relates to teaching little spoiled horrors at somewhere in the backwoods of shandong? You sound like a grovelling weasel who grovels at the temple of Chinese groveldom, but I hope you can prove everyone wrong.