BUT to commute from HKG to THEN do a LH trip? No wonder they can't wait to get us all to shut up so they can get to sleep.
To be fair, the vast majority of long commuters arrive the day before they operates, crash for the night, then report for work the next day. They have a statutory duty to report for work rested, and rested enough to do a 15 or 16 hour duty day if required.