In the European advent calendar, St. Nicholas (Mikuláš) pays a visit to children during the first week of December, bearing gifts of chocolate, walnuts, and oranges to the well-behaved. The patron saint of prostitutes and thieves is traditionally accompanied by a devil (Čert) and an angel (Anděl). The former has the role of carrying away “naughty” kids in a sack — the threat of which tends to keep Czech kids in line throughout the year.