Please reread my post. I clearly stated that I visited a friend who lived there a few years ago. I taught at a university in town.

Post re-read. It didn't say that you'd 'taught at a university in town' there.
So, you're no newbie as regards teaching in China. As you're a native speaker of English from the United States of America, albeit probably of German descent, just like me, you'll not encounter the problems at work here in China that German nationals teaching English here might.
Anyways, my reply will make useful reading for newbies from mainland Europe, as opposed to the UK, who are considering coming here to teach English. Could be that the global financial crisis instigated by some of your country's brokers has not only reduced the number of good employment opportunities for further education graduates in your homeland, but also for their counterparts in Europe, including Scotland, of course!
I wouldn't know the situation precisely as I'm no recent university graduate, and I've been in China since well before the recession first reared its ugly head.