A family protection dog is a stable dog that is good with kids, strangers, guests and anyone else he encounters in a social environment. The dog must also know the difference between what threat and what isn’t a threat. A guard dog is a dog that is not socialized and placed in a house or environment to bark and detour anyone or anything that comes. A personal protection dog is a dog that’s good with one person. Typically not good with big families or kids. Also not good with guests coming in and out of your house.