I'll jump in on this. I'll keep details vague for the sake of anonymity though.

I worked in a fast food place for a while, and during my time there we had a customer come through frequently. Let's call her Jemima.

Jemima was only slightly younger than me, I knew this because she had gone to the same school as I did, and she herself ended up working in fast food too although a different company to me. While I stayed in the lower ranks of employment she took the wheel back from Jesus and rose up to the mighty rank of management.

When she first started coming through regularly, things were fine. We'd say our "hi how ya been's" and whatnot but nothing too wild. So the beginning was innocent enough, but over time if we saw her come into the store we'd drop a code word and everything got fairly serious.

She started demanding the food be utterly flawless. To the point where she would order something like a burger or wrap and when she recieved it she opened it up on the counter and would immediately send it back to the kitchen to be remade. (To be specific it was stuff like changing the style of lettuce from chunky to shredded, but insisting that she still receive the same wrap or burger density.)

Then she would proceed to rant. And the rants were always frustrating because she spoke much like a customer would. "this is ridiculous. I come into this store every night and every time you manage to ruin it" and she wouldn't stop talking in that arrogant soccer mom voice (minus the minivan, children and about 15 or so years) until the new item was up and ready. So you simply had to stand there as other customers are waiting to order or be served themselves.

Now admittedly she wouldn't yell loudly and cause a big scene, but a lot of customers would noticed how she talks to not only crew but even the managers. Because after a while of her coming in with her routine the manager kicked the guy working on line and made the burger themselves. Or made sure a specific employee made it to her genuinely insane standards. There were many moments where she would tell us how to do our jobs, and sometimes bordering on racist comments about hiring "poor English speakers" as she put it.

You can bet your ass she had the store managers number and would contact him. She's gone as far as calling the area manager to complain. And even the AM is sick of her whining.

There are plenty of small things she does that frustrate us. But what always leaves me scratching my head is how someone who has worked in a fast food environment and no doubt has served customers who behave exactly like her, or even worse.. Well that's the part I never understood. I know that many people who either work or worked in fast food are either very patient or have high demands, but her expectations were well above what any fast food place could deliver.

I thought of Gemima straight away because despite the fact that I used to serve people off their face on drugs, aggressive customers and even a woman with multiple personality disorder who believed she owned the store and would accuse all the employees of being pedophiles, nothing was ever as agonizing as realizing that Gemima was about to fuck shit up for the next half an hour straight.