Big dogs are good at three things. The first is fairly obvious. They’re loyal, protective, intuitive and can come across as pretty menacing. I don’t know of a better way to keep shady characters far away than having a big dog around. Second, they eat a lot. You’d think the food consumption would be proportional to size. Not so. A sixty pound dog eats at least four times as much as a thirty pound dog. And watch your step in the yard because all that food has to go somewhere. (This also helps deter the shady characters… And the not so shady ones, too.)
The third, and lesser known, trait of big dogs is that they make great back rests when they’re napping in the sunshine.