When you go in to work at 6 am because you don't know if you work at 6 or 6:30, and you work at 6:30...
And you hope you get off at 1:30 but knowing your luck will get off at 2, turns out you work till 2 but end up staying an extra 30 minutes usually to stock and do till, then your team leader asks you to stay till 2:30, and you don't end up leaving till after 3:00 pm