McD's is currently doing a promotion where you buy two sandwiches from a 4 item list for $4. You can buy any combination of the four, so that means if you want two Big Macs, it's $4, or if you want a Big Mac and a Fish, it's $4. Most of these sandwiches by themselves are nearly $4.
The way the registers are set up is that we have a button for each combination that are all priced at $4. Meaning I have one button for a Fish and Big Mac, and one button for Quarter Pounder and a Big Mac. I do not have separate buttons that I can press to put in a combination, where each button is priced at $2 (such as if a customer wanted a Mac and a Quarter, I would have to press two buttons, each priced at $2) Nor do I have any discount buttons to make any of the combination buttons $2.
Now, if you want just a single Mac, or a single Filet, you have to get it at normal cost, which I mentioned above, cost almost $4 anyways. There is no way around it; the higher ups made that decision, and since I am a slightly elevated peon, I can not change anything about it.
I don't mind people asking me about the promotion and it's limitations, and getting slightly upset over it. Yeah it sucks, but again, at least you asked nicely.
However, this one guy yesterday took the cake. He ordered four dollar sandwiches, and then "I'll have the Mix-N-Match, a Fish sandwich."
I stood there for a good ten seconds before asking him what his other sandwich would be in the promotion, which 10 seconds is a long time for order taking time. I inquired what his other sandwich would be, and he looked bewildered that I would even suggest such a thing! He seemed as if he didn't even think of the other sandwich option, so I suggested another Fish sandwich. He agreed, after asking how much a single Fish would cost.
After I told him, he handed me the money and said something that really irked me. "You know, last time they gave me one Fish sandwich for only $2." Implying that I was overcharging him before I asked what his other sandwich in the promotion was.
I told him that was physically impossible with our register system, and he said one more time, "They only charged me $2!" (By the way, the difference in price he was paying with two Fishes vs. 1 fish was a grand total of 65 cents, compared to what he was trying to make me have him pay, which would have been a difference of $2).
Like I said, I don't mind people asking me "Hey can I get *insert sandwich from promotion* for $2 if I only get one?" but blatantly telling me, who is second in command at this store so I know my shit, that we do charge only $2 for a sandwich and clearly trying to make me cave and rip me off is absolutely ridiculous.
It just annoyed me that he tried telling me that he got it for two dollars last time. There is physically no way the employee could have done that, even having access to every single discount button on the register. They could have made the two/four sandwiches free, but they could not have made one sandwich two dollars.
Eventually, he accepted the answer, got his food and got out of my store. So in the end it was all good, but it left me extremely annoyed that he tried pulling that scam on me.