Petition says "dog whisperer" should be investigated for animal cruelty

LOS ANGELES (AP) -- A spokesman for National Geographic Channels television says a video clip without context caused a flurry of concern over dog trainer Cesar Millan's methods when he used pigs to help in dog training.

Spokesman Chad Sandhas says Millan was working with an aggressive French bulldog-terrier mix named Simon, who has a history of attacking other animals, including his owner's pet pot-bellied pigs. The teaser clip showed Simon chasing a pig and nipping its ear, causing it to bleed.

Los Angeles County animal control officers went to Millan's Dog Psychology Center in Santa Clarita on Thursday, but the trainer was not there.

Jill Breitner initiated a petition on, calling for Nat Geo WILD to take the show "Cesar 911" off the air.