Let's say I apply for my DTV in Vietnam, and given there's an unknown timeline for approval, I leave Vietnam and go to another country for sightseeing until the approval comes through. Then fly to Thailand and enter on the DTV. What would be the risks? To me it seems there's only a requirement to apply from outside Thailand. Doesn't mean I can't go elsewhere after application. Sure, they could request an interview but I could get a flight and be there the following day. Has anyone done this?