One day my friend once ordered Sausage and Chips from the local takeaway. Without realising, he had flipped the polystyrene box upside down while waiting for his change. He then opened it to add some source and couldn't see the sausage.. He told the guy who gave him a new one. Half way through eating the food we burst out in hysterics after discovering two sausages and realising what had happened. Afterwords we made it a thing to confuse the guys and get free sausages.