Roy Norton, The Loner (1926)
“ It had unquestionably been trained to guard John Barton's back; for whenever the man stopped in the street, the dog would instantly fall behind him, face the other way and keep vigilant watch. Once a man, imbued with friendliness, started to lay a hand on John Barton's shoulder—and there came through the air like a bolt of gray wrath, with huge fangs exposed and great head outthrust, that dog. Nothing save the quick thrust of Barton's arm saved the ripping of a man's throat, and provoked the only explanation he, John Barton, was ever known to give of his former life. ”
