My core hours are 9am to 5pm. Other staff work til 6pm and most the same hours as me. My transport home leaves at 5.30pm and there isn't anything else til 9.00pm.
Those at work haven't forseen that one day this week there will be no one to stay until we close at 5.30pm and this happens regularly when other staff are on holiday or off sick. I've asked around the office and no one else will stay til 5.30pm even though they traipse in much later than their official start time. It's shit. AIBU to leave at 5pm anyway, tell the managers this and let them sort it? They don't give a shit and theres a rela hierarchy of 'theyre too important to deal with this stuff'. It's not my job either.