One time one of my friends and I went to a McD's drive through and we both ordered the 2 Cheeseburger meal.
We pull away and start eating the fries, since they are much better when hot.
By the time we finish the fries we're halfway back to work... break out the cheeseburgers...
Unwrap the cheese burger... take a bite...WTF
Pull open the bun... no burger... there's cheese, ketchup, pickles, onions... but no burger.
All 4 of the cheeseburgers were the same.
We went back and complained... we got entire new value meals, + free pies (collective "ooooooooooo")
Apparently someone there thought it would be a funny joke, but it ended up costing them their job.... at least thats what we gathered from the info the lady at the drive though window. Apparently we weren't the first customers that happended to that day.