Hey, Boxer Lover. I just wanted to let you know about my Shepherd mix (Patience). She started barking at everybody like my Rottie did. I was afraid she would travel down the same path he did, so I have a muzzle for her now. The other day a neighbor came to the door. She was barking at him and wouldn't stop, so I put the muzzle on her. She didn't like it at all. The next day there were some girls in the front yard with my nephew. Patience started barking at them. I told her no barking. She barked again, so I picked up the muzzle and pointed to it. She stopped barking and didn't bark again.