I have not, but a good friend of mine taught in South Korea. After that, he used the connections he made while abroad to run off and build a hostel in Germany, then help run it for a while. I believe the program he taught in sponsored the certificate for him. He actually came home a year early—he was living way out in the country in Korea and didn’t really enjoy it very much.

Another friend of mine taught English in Spain for a year, but in a lot of ways that is less interesting.