I worked for a grocery store. The biggest one in canada. Their was barely any full timers, with the majority part timers. Alot of the part timers worked full time hours but weren't classified as full time. Some full timers were like their only part timers like a insult or something. I noticed they could get away with allot more than the part timers were. We were expendable. In the union contracts they would mostly benefit the full timers and the part timers would get fucked even though the majority of the workers were part time.