Overnight shifts are brutal. You clock in at midnight and go home when the rest of the world is just starting to wake up. If you're not nocturnal, the 7am slump hits harder than Rocky Balboa after his training montage, and you're desperate to get home as soon as your shift is over. In this case, one overnight employee was brought to the brink after losing her patience with a coworker who was supposed to relieve her at the end of her shift.