Man's best friend has some choice words for man's worst nightmare.

In this video, a real dog named Fido is confronted by a robot dog named Spot, which was created by Boston Dynamics, a company that Google owns.

Spot doesn't say a word and its movements are controlled by a person, but it's freaking out Fido, who barks throughout the entire video. He barks the way a dog does when it looks out a window and sees a car pull into the driveway -- that is, he wants everyone to know something is up.

Maybe Fido senses the robot uprising is near. After all, animals have a sense when bad weather is about to happen. Maybe they also know when the cyborg revolt is coming, too.

If you're interested in seeing more of Spot and why it's the dog of the future, check out the video below.

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