Cheers for the info.. I'll do the employed route. I don't think they'll check either, so getting the number accidentally wrong is fine (prob wrong number on school's web site anyway, they're so incompetent).
My cunning plan to do a visa run and come back on visa exempt (or tourist visa) is because that's what I've done when I've changed jobs in Thailand... It would also allow me to legitimately say I'm unemployed and be travelling just like many people do I'm sure... Anyway, I don't have much $ in the bank so I don't wanna be giving them bank statements. I do have a letter of invite from my friend in China though.... I'm sure that will help.
It's on the visa app form...asks whether employed or unemployed...if employed it asks for employer's details. So if consulate check, the employer will know...and could make some problems....