No, this was not my intention. 
2768G (service 36): Board at Changi airport T1 but this bus was
going to park at T2 for half an hour before resuming service. I was
the only passenger boarding the bus (because the previous bus 903X
had just departed) and no other passengers were onboard, then the
bus captain offered me a free ride to T2 to transfer to 903X.
471A (service 125): Board at Sims Dr just after Aljunied Rd, bus
captain changed service to SWT 125A. I know the route of the SWT
but I purposely ask the captain whether the bus went to Jln Besar
which I was going to, then he asked me to board the bus for free to
the next stop to transfer to the next bus as he said all service
125A buses changed to service 125 at that bus stop, but he changed
one stop earlier (if I remember his speech correctly).