There are many superstitions regarding the number 13.For example, in Britain it's considered a bad omen for 13 people to sit at a table. Some say that the person who rises first will misfortune, even death, within a year. Other say it's the last person to rise. Some British think it's unlucky to have 13 people in a room, especially for the person closest to the door. The thirteenth day of the month isn't considered a good day on which to begin any new enterprise, including marriage, or to set out on a journey. Many people believe that Friday the thirteenth is the unluckilest day in the year. This belief is so widespread that there are horror movies called Friday the Thirteenth.