Paris Hilton's Chihuahua Tinkerbell was accompanying Kathy Hilton at the shooting of her new TV show, "I Want to Be a Hilton" in New York, when suddenly the little dog start to bite the producer.

"Tinkerbell wasn't kidding - she really bit in good," a source told the New York Post. "The producer had to shake the dog off. It was a nasty bite. Meanwhile, the entire time this is happening on Kathy's lap . . . Kathy is just sitting there doing nothing, murmuring, 'Oh. Soooooorry' . . .'' Woof. The producer had to shake the dog off. It was a nasty bite."

Yesterday, Paris Hilton was giving her mother advice on how to behave during a TV show. "Be very careful not to look in the camera. Always be camera-ready. And don't trust the producers."