Recently I had a similar incident at one of Clarke Quay's taxi
stand, the 1st taxi stand just after Zirca. It was a quiet weekday
late evening, slow moving, I was 3rd in Q I think.
Suddenly pax hop in and started telling me his destnation, I
interrupted and told him that I won't be able to move out until the
2 taxis in front of me pick up their fare. Can you kindly take the
cab in front of the queue please?
Pax said Wa lao eh, I don't like the old manual taxi...must wait
long or not?
I say it depends, but see for yourself...are there many people
taking cab at the moment?
Pax got out, slams door. walk to the side of the road and
boarded another cab that was beside me...who just alighted his
pax.

under lta rule, if pax insist to take your cab though you are 1st
in Q, you must take since you have advise, you cannot reject and if
jam inside, just wait for your turn to move off, pax has their
right of choice but must accept such situation