Who's Afraid Of Friday The 13th?
Psychologists seem to have a fancy word for every conceivable fear known to man or woman. Nyctophobia, fear of darkness. Phagophobia, fear of swallowing. Agyrophobia, fear of crossing the street. Blennophobia, morbid fear of slime. And the phobia de jour, triskaidekaphobia. Commentator Paul Hoffman explains.
Source: npr.org