Phillipines does its best to hold on to its citizens, the amount of times I sailed through immigration at Manila and then turn around and see my ex gf has been held up for further questioning, despite her having a Thai Work permit etc, I was even made to sign a document stating I would ensure nothing bad happens to her and that she will not end up becoming a sex slave etc and I would be held responsible. The worst country for rules as they make them up as each passenger arrives at immigration.