I would not call that a display of real protection, at least not what most people would think of as real protection anyhow.
Are there any videos of this dog actually doing anything aside from growling or barking anywhere?
E-Dog - 2012 WPBTCA National Championships
The time when screech owls and Bandogges howl and spirits walk and ghosts break up their graves.
Act I, Scene IV of William Shakespeare's "King Henry VI"