According to the popular Christmas song "Santa Claus is Coming to Town," Santa Claus is going to find out whether you've been "naughty or nice." This line is often used to encourage children to behave well in the lead-up to Christmas so that they can receive gifts from Santa Claus. Whether or not Santa Claus actually keeps tabs on children's behavior is up for debate, but the idea of a benevolent, gift-giving figure who rewards good behavior and punishes bad behavior has become a popular part of the Christmas narrative.