Useless information....

ok.. they don't call me the queen of useless information for nothing... here are some odd but interesting facts:

• 40% of McDonald's profits come from Happy Meals.
  
• The "spot" on 7Up comes from it's inventor who had red eyes. He was an albino.
  
• Ketchup was sold in the 1830's as medicine.
  
• Celery has negative calories! It takes more calories to consume a stalk of celery than the celery has in it to begin with.
  
• Pearls melt in vinegar.
  
• A duck's quack doesn't echo, and no one knows why.
  
• Bats always turn left when exiting a cave.
• Ants always falls over on its right side when intoxicated.
• The average human eats eight spiders in the lifetime at night.
• Leonardo Da Vinci invented the scissors.
• Marilyn Monroe had six toes.