Haha, I get burned on a daily basis whether I'm careful or not. The other daily occurrence is someone returning food because we forgot a condiment, so we remake it and then look at what they brought us to find that it was made correct and we just gave them the same thing again.
You don't have a drive-thru do you? The light on that board attracts stupid people with such force. I swear they got overly confused just because we don't number our food.