Commentary It’s hard to imagine how terrifying it must have been for the man who entered his home in Red Deer, Alberta, on Aug. 9 to be confronted by a violent intruder. A struggle ensued as the housebreaker attacked the homeowner with a baseball bat. While under attack, the homeowner managed to get his shotgun and fatally shot his assailant. The homeowner was taken to hospital and treated for non-life-threatening injuries. After a short investigation, the RCMP and Crown determined that no charges would be laid against the homeowner. In recent years, there have been a number of cases where homeowners were criminally charged after having used firearms against intruders. Prosecutors have had a difficult time in getting convictions in these cases, however. Ian Thomson of Port Colborne, Ont., was charged in 2010 for firing shots in response to men who were attempting to firebomb his home. Thomson was acquitted …