Vietnam? Not sure about ESL, but I would fancy opening up a bar/restaurant there one day.

My mate from school did that I think, but he got so pissed off with all the trouble of rowdy vietnamese males and his bitch of a vietnamese wife, he closed it down/sold it off and now just teaches ESL. The problem is countries like China and Vietnam make it practically impossible for a foreigner to do anything, even with a local wife. I do believe cunning linguist had been through the ringer in the past.

Either way, good luck john.