My pyr Roxanne was the best judge of character I have ever known. Typical of pyr, she inspected all guests, neighbors and strangers. When they did not measure up, they were controlled or banished. Because our family did not use tobacco products or alcohol, she sorted out those who did and was suspicious of them. If you are sidelined by a pyr guarding her family, you will be staying in your chair while you visit. There will be a mountain of a dog in front of your legs and you may not get up or move. She wasn't there because she was attracted to you, as some thought, but to face her flock and keeping danger behind a line.
Needless to say, my three daughters were always chaperoned by Roxanne while dating, and each man had to win her respect!
Once, she chased a man violently who came up walking silently behind me on a walk. He was wanted by police I found out later. My dog couldn't have been a better judge and friend. Great Pyrenees are not only gorgeous and silly clowns with family. They will give their life for you.