We're considering getting a puppy that will be a family pet primarily but also one that will be protective in terms of a deterrent for burglars etc (I know all dogs will be protective to an extent but we're thinking more along the typical guard dog lines, a bigger dog etc). We were thinking German Shepherd initially but not sure now whether that is the right option for our family. Can anyone recommend another medium/large breed who would be a protector and good family pet with young children?