When I worked at carls jr, I gave this order to a guy. He walks away and looks into the bag and stomps back all pissed and saying "Why are there two hashbrowns?! I only ordered one!" So I look at his receipt and tell him that he got an extra one for free. He then stomps out in a hissy fit. I mean cmon who would not mind getting free hashbrowns or fries in their order?
