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 meet with misfortune even death within a year others say it's the last person to rise some british people 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 unluckiest day in the year this belief is so widespread that there are horror movies called friday the thirteenth