While true, and I personally applaud him for it, if this were posted over on L&CR folks would be questioning whether Mr. Pugh producing the weapon might have been the "escalation" causing this tragic shooting. By being at home he put himself in the situation of having to shoot the poor criminal. Most likely, had Mr. Pugh just sat on the duvet and read the paper, the BG would have just left him alone.
Had it been a pump shotgun, just the sound of cycling the action would have blown his arm off...
Brent