To preface this I'm in Australia and work at a 24hr petrol (gas) station.
I regularly work an evening shift a couple of times a week, which generally spans from 3-4pm until midnight.
My issue is that the worker who is supposed to be on the shift after me is incredibly unreliable, they don't show up until 3am some nights or doesn't show up at all.
My manager keeps his phone off at night even those his contract states that he has to fill in for no-show shift workers.
The area support manager refuses to call other workers to fill in and expects me to do it (absolutely NOT my responsibility, nor do I have access to any workers phone numbers outside of those who work at my store).
I work at another job during the day, the sleep deprivation is killing me. I have regularly rostered hours.
Spoken to my manager about it and they don't care at all.
Would I face termination for “abandonment of shift” if i decided to just close the store at the end of my shift and go home whenever this happens?
Because frankly I don't think it's my responsibility at all to stay there. 15 minutes to a half hour is ok, but this is every other week for hours at a time.