I have a friend who breeds Great Pyrenees on their farm, they have like 10 of them running around. They use them in the farming of their sheep. Most of them are connected to tires so they can't get out of the fence.
They grow outa this, or at least our black lab did after he left the puppy stage. Funny thing is my brother taught Sheradin to fetch the news paper. So when we didn't get one, he'd fetch the neighbors papers instead... When he was young, he had a real bad habit for chewing things though...
sometimes they do get them on their hind legs. We used to have another pyrenees, but he died quite a few years ago. they're quite the fun dogs to play wit though. more so when they're older since, u know, they don't wanna chew on whatever they can get their jaw around, or can't for that matter.
Puppies really have the life. all they do is eat, sleep, drink, piss, poop, and look cute.
Just come back from a veterinary clinic (my wife's a vet, just received her "licence" today), there was a gigantic black, drooling, Newfoundland and, AND, a no less gigantic St Bernard... omg, these dogs are so amazing !
nb: we have a Colley at the moment, size wise, not the same category