"A person unfamiliar with dogs,would not be able to readily discern either dogs intent"
IMO, if you claim that, you have never been in front of a dog that is ready and willing to kill you. Humans have an inherited self preservation, that hey got from the guys that lived in caves. They did not have to be versed in all saber tooth tiger behaviors, to know that they were going to kill you.
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"