The same dogs who adorably failed to grasp a magician's sleight-of-hand are back, and this time, they're being subjected to a voice actor speaking to them "in dog." Whether the human barking "means anything" is basically irrelevant, because someone is making noise.
It's like hey, dogs, we get it. You hate cats. Fine. We heard you the first time and the second time and the one millionth time, with the barking. Maybe you should bark at a cat again? No, you should shut up!
Do you hate dogs? Great. Awesome idea for you: adopt a dog, then decide that the dog's barking annoys you, then have the dog's vocal cords severed so it can't bark ever again. Stupid dogs, always behaving naturally. [NYT]