^ i'm not sure ma'am if a labrador will pass as a guard dog, but rottweiler, doberman, belgian malinois, and GSD (I had the last two. usually ito yung ginagamit ng canine unit ng AVSEGROUP as sniffing dogs) are guard dogs. they are menacing and highly territorial. in one's home, i prefer, as effective deterrent, guard dogs than cctv (unless it comes with a TOC), but homeowner's association that limits the number of dogs per household.