Has this guy gone barking mad? Whatever’s happened, he’s hilarious.

Sydney man Ray Graham, 57, appeared on Channel Nine’s A Current Affair this week to talk about about a number of dogs  terrorising his street in Marsfield.

His accurate impersonation of a snarling dog, delivered while his wife Kerry remains emotionless, has fast become a YouTube sensation.

It even appeared on American network CNN where a recording was played to a number of dogs on TV. The dogs appeared scared and backed away from the sound.

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