Triskaideka-phobia

Triskaideka-phobia is fears at number 13. Since centuries ago, number 13 was considered to be negative in thecommunity's confidence. People are reluctant to invite 13 guests in a dinner. Even Napoleon Bonaparte J. Paul Getty and Franklin Delano Roosevelt were worried about having to eat dinner with 13 people in one table. Even some hotels avoid giving the number 13 for their rooms or even passing the 13th floor.

In February 1987, Paul Hoffman wrote in the Smithsonian Magazine that this hard to spell phobia costs an extra $ 1 billion per year for causing people to refuse to work, cancellation of train and airplane tickets, and reduced tradingactivity on the 13th of every month .

So, do you afraid of number 13?