Return tickets: what if it's your 2nd destination?

Situation:

Let's say I'm from Vietnam, then I fly to KL and then I fly to Bali, do I need to have forwarding tickets???

I am thinking they would be less strict in Bangkok assuming that most people cross borders by land.

When you travel by land, they never care if we have return tickets... I assume if the destiny Singapore it's a must.

Is this really a policy? I'm assuming it depends on what your passport is.

I've never been asked to produce onward tickets in SE Asia, but I have also never been to Singapore. I do think you might be correct about assuming what the passport is. I would imagine an African might be questioned when a European might not be? It seems to be all about "wealth" in this world!

I travelled on a 3 day jaunt to Singapore last year from Siem Reap, i was not asked for any onward or return ticket proof.
Perhaps travelling on a British passport was a discerning factor (or not), no idea.
However i agree with Daawgon and believe that there is an air of snobbery co-inciding with whatever passport you own.

I have never been asked to show flight tickets, so far.... But when you present your passport to the immigration, do they get to see if you booked a return ticket????

I would want to land in Singapore and take bus to Malaysia... But Singapore won't be my 1st destination... Do people buy bus tickets online now a days??? and can that be like proof of onward travel?

What's the worst that can happen if you don't have a return ticket? You'll be deported and you'll have to pay for that same day flight?

I don't have the answer for you (I seriously doubt that you would be deported). I suggest you might get a better answer to your question over on the Travelfish Singapore Forum.