@Tony *********
4 months this year already in Thailand….
I have 25 years experience visiting Thailand with many types of visas, crossed through all land borders, met all kinds of people and I think that telling someone who has spent almost half a year in Thailand that they have nothing to worry about when returning without a visa is very bad advice.
Even if they send him back to Vietnam he will have to endure the humiliation of having his passport taken away and being placed in a fetid cell until they can put him back on a plane