I have a 17 week old lil German Shep mix mutt and she is not afraid of people AT ALL!!! I mean not in the slightest! And I had little hope that she would be a good natural "guard dog" like my last dog...but she is now starting to bark and raise her hackles in our yard if she hears something. Also she barked when people came to my door. Which I like, nothing in her body language said she was barking cause she was scared...it was like a stand her ground bark face and body leaning forward and then when my visitors came in she was fine! Just asking for opinions if this is normal for a 17 week old? Anyone else have a pup like this?