Fast-food/movie theater/retail job weird/horror stories

So, I've looked this up and the internet is FULL of horror stories from both fast-food and retail jobs. I'm sure I would get plenty of results if I looked up horror stories in any career, but since I'm going into entry-level jobs, that's what I'm looking into. Unfortunately the place I worked at, which was a pizza place, had financial issues and had to fire all new employees after only a week, so I am job searching again. It was a pretty stressful week (that was only five days including orientation day), so I will share the few stories I have to tell. They may not totally qualify as horror stories because they are pretty minor, but it's all I have to tell at the moment. I will edit this in the future as I get more stories to tell.

Pizza Hut:

1. I was working near, but not at, the drive thru and an assistant manager was training me on how to take orders and use the cash register. I don't remember exactly what happened, but I guess someone was losing their patience because they just drove off. Their tires screeched so loudly that I thought they were going to crash into something! I guess they had been waiting too long for us.
2. This is more of a new-employee mistake than a horror story, but I'm concerned it had something to do with the new employees getting fired. I worked with an employee who had been working there for a few months and we were working on getting dough orders. We had to prepare pan, 12 inch, and 14 inch pizza dough and get them seasoned with garlic butter and prepare them to be cooked. Well, apparently you can't just leave them in the freezer overnight because the next day, one of the managers showed me that the dough had become soft and would not be safe to cook with. This mistake cost the pizza hit company so much money, probably hundreds, maybe thousands, of dollars! My managers knew it was an accident, but I think it had something to do with all of their new hires, including me, losing their job a week after I started. (Like I said, they said they had to fire us for financial issues.) (I tried to tell the manager to forgive the person who'd been training me and she just said that girl wasn't going to be training me anymore. Since I lost that job, I have no idea what happened to her.)

Movies:

1. I really only have two stories to tell so far. I was sweeping and an older man asked me questions about something. I think it had something to do with when a certain movie was showing and deals he was owed or something. I don't know what happened, but he came up to me a few minutes later with an angry face and demanded me to get my manager immeaditly with no questions asked. I did so and he just asked my manager for our corperate's phone number. I don't remember all of what happened, but a few people saw it and said "I'm sorry that happened! People are just rude!" My manager thanked me for getting him, said that getting a manager for angry customers was the right thing to do, and not to worry. I do still wonder (though I don't really worry) that something's going to happen.
2. I am an usher, which basically means I sweep up popcorn and other trash that gets on seats and on the floor between showings (and I rarely have time to get it all done before people start coming in, but I do what I can before people come in). One time, I saw what I guess was poop smeared on the seat. I'm sure every usher at movie theaters have seen it, but it's a gross and common thing to mention.

McDonald's

McDonald's is where I've been working for a month now and it's been a pretty good job and I honestly haven't had to deal with a bad or rude customer yet. However, I have had a few awkward instances.

1. One of my main duties is janitorial work. Since I work from 6-10, I usually keep the dining room clean for the first half of my shift, take a break, and clean the restrooms for the rest of my shifts. When we clean the restrooms, we clean both of them and we close the restroom if we're cleaning the opposite gender's restroom (which means men clean the women's restroom to clean it and women close the men's restroom to clean it.) When I was a new worker, a man must not have seen the sign and walked in, and it felt weird but I left the room for him to go.
2. There's a man who comes every week or two to spread the word of God. I have a Catholic blog and he asked to pray for me and spoke in tongues while praying. It was nice, but I wasn't expecting to directly talk to God, so it felt kind of awkward.
3. One time we had a bus of kids come in who couldn't have been past the third grade. Our dining room is pretty small for a McDonald's, so we asked them to eat on the bus. Most of the kids are while they waited for other meals to come in. Cleaning up that mess was fun. It also felt kind of weird when I took out the trash to change the trash bag and kids just starting forcing their trash into the full bag! NO! WAIT FOR ME TO CHANGE THE BAG! haha

Now I have a story to tell as a customer at a Dollar General. I was at a store with my dad and this loud, obnoxious woman was grocery shopping and probably didn't say a single sentence without mentioning that her husband was going to have a colonoscopy. I don't even remember everything she said, but my dad and I were at the soda isle and she was like, "I'm shopping for my husband. I have to be careful about what I get because my husband's getting a colonoscopy!"Then in the checkout lane, she kept saying "I couldn't get this because my husband's getting a colonoscopy!" "I had to get this instead of that because my husband's getting a colonoscopy!" When she finally left the store, I imagined the line breaking into applause because we no longer had to hear that. (I told my mom this story when we got home, and when I was typing this, she read this and said she remembered us telling her that.)
Another story: I used to work at a Wendy's (and stopped getting hours after only a month) and I went back to the one I worked at and I saw one of my former managers (the one who conducted my interview and hired me, in fact), and he said, "Hey! Long time no see!" I didn't say this and I was like "I know! Sometimes I miss it!" but what I THOUGHT was "Hey! Long time no hours!" The manager I saw was actually more patient when training people than the two I talked to the most.

Anyway, I saw that sharing fast-food, movie, and retail job horror stories was a thing on the internet, and it probably is for all jobs but these are the types of jobs I'm sticking to for now since it seems like most people I know had fast food for a first job. I would love to hear your stories in the comments! TTYL