My first job was at a big multi cinema theater with imax and the like.
I never worked register before so I kept making mistakes with some basic transactions in concessions which some of the managers and supervisors understood except for one.
This manager (Crazy Manager) picked on every little thing I ever did making me feel like crap when I messed up.
She was very stuck up and rude to other cashiers and looked down upon one of the nicer managers (Good Guy Manager).
During the holidays each employee was given an option of what to take off. It had been a few months so I had gotten the hang of concessions and was moved into box office.
I had decided to work New Years Eve because my family normally didn't have a huge celebration.
It was dead slow and the two managers Good Guy manager and Annoying Manager were in and out of box office since I was the only casier that evening.
At some point around 10 or 11 GG was checking in on the box office to pull money when CM comes in and begins to argue with GG going crazy over something he may or may not have done.
I was in the middle of a transaction so while she was spewing colorful language the customers lined up to see a movie could probably hear most of it through the thin glass.
The managers ended up leaving at one point an I had to awkwardly finish my transactions. As startling as this event was after it happened CM stopped picking at my faults was extremely nice to me.