I worked at one of the various species of dollar stores. I had this old lady come up to my lane. She had to be in her seventies or early eighties, was hunched over, and had a black walking cart she would put her stuff in.
Just as I was about to ring her out, the system went down completely. Now I had had her before as a customer, and knew she was a pain in the a**, so I decided I would pre bag the duplicate items (she had six boxes of tissues, two packs of toilet paper, and two rolls of paper towels).
We are waiting, and waiting, and waiting. About eight minutes go by, and my register won’t start. I have a line approaching twenty people long at this point, and my manager manages to open another two registers, but mine won’t start. So, they open the other lanes, and people immediately shift over.
Customer: “What about me? I’ve been in line the whole time! I was next!”
Me: “We will get you in line, we’re just intending to get you close to the front—”
Customer: “—forget this!”
And with that, she just… walks out of the store, items still in her cart! I chase after her because both managers are ringing people out, and tell her:
Me: “Ma’am! You still have to pay for the items!”
Customer: “You won’t ring me out, so I’m just leaving.”
Me: “Ma’am, I was trying to ring you out, but the system went down.”
We dance around the whole “you have to pay” and “you won’t ring me out” lines for a few minutes, with her yelling getting louder and louder.
Customer: “I’ll come pay for it tomorrow! I have to walk home and can’t stand in line all day!”
Finally, a manager has noticed and comes out. She asks what is going on, and I explain the situation to her. I turn around to talk to the lady… and she has run halfway down the plaza with her goods! She’s actually broken into a run!
Manager: “Let her go. If she can move like that at her age, I’m scared of her.”
Me: “It’s like that scene in Star Wars when Yoda stopped using his walking stick and start popping some moves.”
Manager: “If she doesn’t come back tomorrow, I’m branding her a Sith lord.”
She did not come back, but I do sometimes see her in the mall and plaza complex, and we all now refer to her as a dark Sith lord.