Big dogs are nice but a pain to wheel with most of the time. I personally have a Aussie Red Healer. Truly one of the best family breeds there is. This dog from a puppy never ever once pissed or craped in the house. Never ever chewed up anything. Is 100% protective of it's pack. (your family). The dog I have is a house dog and there is no worry of home invasion!! Extremely smart so watch your food on counters!!!