It is rude not to help co workers.
Mika is at the end of her shift stocking shelves but is running behind and George just came in a few minutes before his shift begins.
George wants to decide whether or not to offer assistance to Mika.
George sees Mika struggling to finish her work, so he goes beside her and starts unloading the rest of the goods onto the shelves.
George sees Mika struggling to finish her work, but since it's not time for him to clock in, he has a cigarette outside to pass the time.
Mika is able to get her job done with George's assistance, and she feels grateful.
Mika is unable to complete her work on time, and she gets written up by her boss.