Ruby girl , don't bark at nothing except when strangers come to door? Is this normal? Does she know everyone in the family by now she is just 6 months old..but very smart, when the alarm sounds when to door opend she stops what she is doing and goes to see who came in! She don't even bark at my moms pekingese that bites her nubby tail and chases her she don't bark! Is this normal to not bark much at all? I guess kinda good?