The old adage that says "the customer is always right" couldn't be more wrong. Here are 24 times the customer took it too far and it cost someone their job and the fired person was usually happy about it!
I didn't say this, but I saw it happen.
Working at Burger King many years ago. I was working the drive-thru register, which was close enough to the front registers that I could hear conversations. One of my co-workers was taking an order from a lady who kept asking how much her total was, and then cancelling food on it and changing her mind. I guess she was trying to keep under a certain dollar amount?
Well at the Burger King I worked at, any cancelled food on an order needed a manager's password (thanks to one a--hole who stole money by putting in someone's order, telling them the total, and then canceling out the order and pocketing the money). So the manager had come by 3 or 4 times at that point. This was during dinnertime, mind you, so there was a line of customers out the door waiting to order.
Finally, my co-worker pulled out a pad of paper and a calculator. He started writing this woman's order down and totaling it out by hand. The woman asked him why he was doing that, and he told her "When you make up your mind about what you want, then I'll put it in the register."
This pissed off the lady, so she grabbed the notebook and tried to hit my co-worker with it. He snatched it back from her and told her "Get the f--- out." My manager was only going to write him up for it (since the manager agreed that the lady absolutely deserved it, but my manager had to follow company policy), but he already had two writeups on file so she had to fire him.Source