BigBrown87
If it’s brown, it’s going down
All you can do is work at a safe and reasonable pace, the union will not back you because they are short staffed being a PT. The only case you got is whether the other guys going home have less seniority? Usually it works from the top down in regards to getting cut but that is a supplemental issue that you should ask a BA or union steward. Ever try calling in and tell them you are gassed from staying late and unloading 5-6 trailers a night with no help? You have to stand up for yourself the union will back you but you need to take the first step.
Hope they get you some help though sounds like too many sups and not enough workers IMO