I can see some merit to Boredcounter's post and agree
Back in the day there was always a 'you scratch my back' ethos, if you could give crew extra call out time before their SB started, especially if it's a L/Haul trip, it was very often appreciated, ofcourse you always came up against the odd awkward so and so who did object, they then mysteriously found themselves getting the minimum report time for all duties and couldn't work out why!!! - you try getting ready, packing and travelling to work in 90mins - Crewing will always win.
It seems that 'get along' attitude may have been eroded from the profession nowadays