First job I wasn’t experienced enough (kitchen porter at a busy restaurant).

Next and last one my coworker was going to sue the boss for sexual assault and part of the crew including her were planning on suing for laboral exploitation (false contracts, unpaid hours, etc). The boss heard about it and fired us and threatened to sue us for bullshit (for staying after closing drinking, it was a pub so is something normal and some coworkers that were there but didn’t want to sue didn’t have any problem).