I don't think it's necessary to be properly qualified to teach EFL in China. By the way, I'm here teaching EFL because I much prefer doing so to teaching maths as a properly qualified secondary school teacher back home.

You are being modest to a fault, foxy. You and Turnoi are one of only a few properly qualified teachers in China, and that's all about it. Myself and thousands of other FT's will not be getting a teacher's pension because only qualified teachers qualify for those-Get it? Got it? Good!