Happy boxing day! If you're just taking it easy, check out some of these random facts about everyday life. Hit the list below for this week's edition of 13 random facts:

1. Zippers are the most common cause of penile injuries.


2. Sneeze hard enough and you could fracture a rib. Suppress a really hard sneeze and you could rupture a blood vessel in your head or neck.


3. TV watching for more than 2 hours a day can shorten life expectancy by 1.4 years. Six hours daily and you might die 5 years earlier than you naturally would.


4. Shampoos, soaps, hair dyes and cosmetic products might contain carcinogens that can cause cancer.


5. An office desk has 400 times more bacteria than a toilet.


6. Golf clubs are dangerous and have been known to break, and pierce a golfer's heart. Angry golfers that is.


7. Swans have been known to capsize boats, attack humans on jet skis and even...strangle dogs to death.


8. There could be over 730 million germs living beneath your ring.


9. 600 people die from falling out of bed in the U.S.


10. Falling icicles kill 100 people a year in Russia.


11. Some butterflies drink blood.


12. A mattress doubles in weight over 10 years because of dust mites and dust mite poop.


13.  15 percent of air you breathe in a train station is human skin.