I remember one time where I was traveling to Bali. Showed airline staff my confirmation on phone but she wanted to see it on paper. Luckily by chance, I had it on paper but I normally don't. I think it's always better to be safe than sorry.

I'll chime in that this question comes up often and it's so different for each person because as we know, T.I.T and what one immi officer says is ok or not can be totally different from another.

I personally ran into MANY problems when I finished my contract and my prev employer didn't cancel anything. Supposedly they were told that since I finished my contract, nothing else needs to be done. They were so wrong!

What's even more annoying are those that weren't asked to show it are just so sure others would be fine and not asked to show either.

That sucks for your friend. I'm curious why she doesn't have med cert?

How does it even work considering only 1 person at a time goes up to the counter?

Not correct. The thai wife goes in Thai lane and he'd have to go to the foreigner lane.

Thai officials: "What can we do to clear immigration lines quickly to help tourists?"

Thai officials: "Let's eliminate TM6 cards for Thais!" (Pats each other on back for brilliant idea.

T.I.T

That would make too much sense. So...it'll never happen.

For Thai citizens yes. They have their own lanes so I don't know how it helps everyone else?

I'd think if you used their Thai one, you'd need a visa for them.