kinda like when check-in staff decide to take a calculated risk and check you in before counter close out time so you won't have to rush through CIQ, or to exercise countless other little discretions they may have in the course of their duty without an inkling from you or a thank you too.........
HKG check-in staff using their discretion to help other staff? Can't say I've seen it in nearly 20 years with this company. It happens in the outports, but not in HKG.