I don´t know how common it is in the US. If I look to my own bred dogs they are all pretty dogagressive, and not very social to people either.
2 reasons for that..being very dominant dogs they don´t allow much around them...the whole world is theirs and everything else must disapear. Because we don´t bother, this behavior is more devoloped then by someone who wants them more or less social and let the dog behave in a manner what isn´t in his character.
2 reasons for that..being very dominant dogs they don´t allow much around them...the whole world is theirs and everything else must disapear. Because we don´t bother, this behavior is more devoloped then by someone who wants them more or less social and let the dog behave in a manner what isn´t in his character.