The "privacy" feature means that you shouldn't try to force them to come to you when they're not so inclined - they naturally come, but in their own terms. When they're in the mood, they're very affectuous and expressive. But often, they like to just "retreat" into a shady corner somewhere and be left alone. They're still doing their perceived job, to protect the property and the family, but they do it in their own terms. They have a super sharp ear and react promptly. Like I said, they tend to be very stubborn. The only health issue that's common to them is something common to most big dogs: with age, sometimes they develop a serious hip dysplasia and they get terrible pains to walk. In that situation one must wheigh the possibility to put an end to their misery.
Eden