Or his arch enemy... though they had an across the street discussion of one bark each. After which they no longer bark at each other. Charlie still barks at his AE if he across the street & Charlie is in the house. Go figure.
He has never barked at the dogs behind us. He listens then ignores.
But if the cat or pug downhill are visible he shakes the heck out of his ball.
Charlie is weird.
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