I don't know if it's the same in the states but in my area of Canada we just got signature mcwraps (chicken & bacon, fiesta, and sweet chilli) and for the passed few days they were 50% off ($2.69 with tax). Some guy decided he wanted one of them, I punched it in, his drink, and I thought he'd said a small fry so I punched that in too and quickly voided it when he said he didn't want one (and got pretty snarky). I told him the price and he freaked out on me, telling me that wasn't what he wanted, that it was the wrong price, ect. I pointed to our sign and told him that he'd ordered the mcwrap which was half off and that was why the price wasn't what he expected.