In 2004, Hilton feared the worst when she lost her beloved Chihuahua Tinkerbell. She originally offered a $1,000 reward for the pooch and then upped the ante to $5,000. Good thing, too. Tinkerbell was found safe after a total of seven days missing, and has since authored a book, "The Tinkerbell Diaries: My Life Tailing Paris Hilton." Seriously.