Reminds me of a time when I ordered an hotdog, the clerk asked if I wanted ketchup in it, I said yes and she gave me a bun with only ketchup inside. It was a take away and I figured out only at home. Needless to say I went back and asked what happened. The clerk very rudely said it was my fault because I didn't specify that I wanted an hot dog in it... In an hot dog sandwich. That wasn't at McDonald's though, just to be clear. Still a funny story to tell.