Friggatriskaidekaphobia is a morbid, irrational fear of Friday the 13th. Therapist Dr. Donald Dossey, whose specialty is treating people with irrational fears, coined the term paraskevidekatriaphobia. Perhaps Dr. Dossey has an irrational fear of friggatriskaidekaphobia. Anyway, he claims that when you can pronounce the word paraskevidekatriaphobia you are cured of the irrational fear. I'd like to see the science, however.

More Info: skepdic.com