I have a few, working at Arby's fast food (fun).
For the first one, I was working drive-thru when this lady comes through and orders 2 combos, but she wants these potato bites (nasty things) instead of fries and they are more expensive. I give her what she wants and then she starts complaining to me (while there are people in line behind her) about the price. Finally she says that we have the wrong price for the potato bites - which is near impossible because everything is programmed and if it is, the supervisors usually know quickly and key in the right price. This lady proceeds to tell me that I have it wrong, when she says the price is 2.79. I tell her that there is tax. Not a complaint out of her when she got to the window.
Another dude, we had Extra Large drinks, and well we were out of the ones we were supposed to sell, and had these older cups that looked X-large but weren't. See they were the same size as the Large, so I just didn't sell Xlarge and the supervisors didn't mind. This dude comes through drive-thru and tells me that because the item is on the menu board and advertising we have to it. I want to know what the dude does when we run out of fries or roast beef.
Another lady (same day as the first one) came inside, and wanted a sandwich and a drink, with a senior discount. No problem. She then proceeds to tell that she has a coupon and I tell her that I would have to void the whole order because I already put in the senior discount. She says, well just do it then and then wants to use this coupon without actually having the coupon. So she goes out to her car, gets the coupon for a $5 dollar combo, I ring it up, and then she says she wants a senior discount. We have a policy were senior discounts cannot be given on any coupons, combos or discounts and she flips. She gives the line "Well, I was just in here and got it this." I didn't really care, so I kept telling her I couldn't do it, which I can't. Needless to say she didn't get any food from us that day. (I'm not mean, I honored this one lady's coupon that was expired in October or November I think.)
BUT THIS IS THE BEST ONE!! Unfortunately this is second hand from the people with headsets on that day. This lady comes through the drive-thru and asks like 3 times to the person taking her order what the difference between a HAM melt and an ARBY'S melt is. The dude taking her order tells her that the HAM melt has HAM and the ARBY'S melt has ROAST BEEF. Three times!! Then the lady gets up the window and asks the cashier 2 more times what the difference. I wonder if the lady ever figured out what the difference between the ham melt and the arby's melt was.
I just love people... -_-