There's a good reason that dogs are considered man's best friend. They're protective. They want nothing bad to happen to their master. So when this dog saw that his owner was in danger, he snapped into action!

All this man was trying to do was clip his toenails. That's it. But for some reason, the dog saw that as a major threat to his owner and decided to step in to help! Watch as this protective pooch attempts to ward off the toenail clipper threat with ferocious growls! 

Who's a good boy?!