Jane was playing with fire. She thought she'd just go on and on, not helping out her teammates, and instead proactively making their work situations genuinely unpleasant environments. Just picturing the mystified look of pure confused, terror on Jane's face when this employee dipped out on Christmas Day is enough to put a smile on your face. Sounds like the manager wasn't doing anything to help the situation either, so it's not terrible he had to show up to address the meltdown on Christmas Day.
Check out some more juicy revenge drama with this property manager who was terrible, and ended up getting canned.