I went to my local McDonalds after closing up at the auto parts store that I work at, and it was only 8PM and they closed at 11PM. I ordered one large fry, two cheeseburgers, and a 20 piece McNugget.
Paid, and was told to wait in spot number two for my food which was being cooked...
45 Minutes Later (and five cigarettes later) - I finally went in to find out that my food had been ready for 30 minutes, and that they forgot I was outside waiting. Not only did I not get a refund, I had to pay again apparently (since they charged me twice) for the same old food.
Monetary Loss: $17.