Jennifer Aniston's dog hates John Mayer

The elderly Corgi-Terrier mix is said to be very protective of his mistress and is not keen on sharing her with Mayer, NW reports. "It's funny because John likes dogs but for some reason Norman has taken a disliking to him," says a source close to Aniston. "Jen dotes on Norman. She treats him like a child but she's got to the point where she's had to keep him out of the way if John is around. She's convinced it will get better the more she and John spend time together. Norman is just picky about people.

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