1. It is considered bad luck to have a black cat cross your path on this day. Due to the negativity linked to black cats, they are the harded to re-home in pet adoption facilities.
2. Contrary to popular belief, there has never been a ship named the HMS Friday that left dock on Friday the 13th and was never seen from again.
3. This year, 2012, there are 3 Friday the 13ths - in January, April and July.
4. If you find a horse shoe with the open end facing you, nail it over the door with the open end up so the good luck doesn't spill.
5. Hospital admission as a result of a transportion accident may be increased by as much as 52 percent in some cities on this day.
6. Paraskevidekatriaphobics is the irrational fear of Friday the 13th, and Triskaidekaphobia is the fear of the number 13.
7. Most fears of this date are related to mythology and Christian ideology: 13 guests attended the last supper, which was followed by Jesus’ crucifixion, which by some accounts occurred on Friday the 13th. Additionally, Judas, Jesus’ betrayer, was the 13th guest.
8. Many hospitals do not have a 13th room. Hotels rarely have a 13th floor, and most airports omit gate 13.
9. Mark Twain once was the 13th guest at a dinner party. A friend warned him not to go. "It was bad luck," Twain later told the friend. "They only had food for 12."
10. Superstitious diners in Paris can hire a quatorzieme, or professional 14th guest.
11. In Norse belief, Loki was the 13th god, and when he showed up at Baldur’s funeral (despite being Baldur’s killer) he was the 13th guest.
12. Ancient Egyptians believe that life was a quest for spiritual ascension which unfolded in stages: 12 in this life and the 13th was the eternal afterlife. Subsequent cultures readily associated 13 with the fear of death, rather than a reverence for the afterlife.
13. Changing your bed linens on a friday is sure to bring bad dreams and restlessness to your slumber.
Are you superstitious??