Food featured on T.V. in commercials is meant to make our mouths water and get us to drive to the restaurant to purchase the product. Most of the time, it works. But getting the perfect picture of a burger, bowl of cereal, or soda is harder than you'd think. Here's some of the tricks used by photographers to achieve a great ad - and some of them are really weird. Which one do you find the most shocking? Discuss here... just don't talk with your mouth full!