I have a Caucasian Ovtcharka, he is 4 years old and a total sweetheart- his name is Mallar. He is very testy at times- but aren't we all? He doesn't live with me, he lives on my uncles farm, but he is mine. The breed def. isn't for everyone. I will show pictures later! But Mallar is one of the sweetest dogs we have....he's my boy and I wouldn't EVER call him aggresive. Just like Kay said- It isn't fair to say the breed "mean" it all depends on how you raise the dog.