Those of you with paraskavedekatriaphobia can stay inside.
(a word that is derived from the concatenation of the Greek words Παρασκευή, δεκατρείς, and φοβία, meaning Friday, thirteen, and phobia respectively; alternative spellings include paraskevodekatriaphobia or paraskevidekatriaphobia)
Lest you believe that Friday the 13th is safe:
Born on Friday the 13th
Mary-Kate and Ashley
and Peter Davison (well, unlucky for you if you were a big Tom Baker fan)
It's 7:30am... I've been up since 4am.. This is all I can come up with.