I use to work at Eagle Boys Pizza when I was 15 - 17 and I use to get some hilarious people ring up and take orders, it use to be really difficult at times.
An Example:
Me: Hi, Thank you for choose Eagle Boys, etc
Customer: I'd like to order a pizza please
Me: What would you like to order?
Customer: Ugh, a pizza?
Me: Yes, what type would you like - would you like me to read the menu for you?
Customer: No! It's uhh.... Got meat and sauce on it!
Me: Is it by any chance the meat lovers?
Customer: No! Don't assume things! It has bbq sauce and meat
Me: The pizza you are describing is the meat lovers, as no other pizzas have bbq sauce and just meat on them
Customer: No that's not it you punk, put me through to the manager!
Me: You're speaking to the manager of this store at the moment
Customer: Oh............. Then yes, I'll have the meat lovers please
Some people use to drive my crazy at that store!
Then another time I was serving someone on front counter, It was a public holiday so there was a 10% surcharge on the orders - there was signs at the front of the door and we explained to all the customers about the surcharge and everyone didn't mind at all.
However. . . When the store was packed, there was about 30 customers waiting / standing at the front of the store. There was this one customer who went absolutely crazy at me because his order was going to cost an extra $0.40. He was screaming and abusing the hell out of me and the other customers were like "It's an extra 40 cents, it's a public holiday. . " After about 15 minutes of him abusing me and calling me everything under the sun. I calming said "As it's a public holiday there is a 10% surcharge on all orders, non of the other customers are complaining and they understand and don't mind. He continued to abuse me and called me everything that you could imagine.
So I was getting pretty annoyed at this, as I had been polite and tried to resolve the issue, but after 20 minutes of this I just stopped what I was saying and said. "Listen, I don't get paid enough to deal with (censored) heads like you, if you're not happy with the surcharge then go somewhere else and you'll still get the surcharge" - it was my second last day at there before I left, so I really didn't care lol.