ok, so the overall assumption is that this is dog aggressive, but there are variable demonstrations of aggression. Aggression where the dog wants to kill the object (dog, other animal,…) or if it is fear aggression, then the thyroid has nothing (probably) to do with the 'aggressing' towards the other dog. If the dog has a fear or inability to socialize with other dogs, then the growling, lunging, last resort bite,(if that variable is actually followed through or if the snapping is done and the fearful dog retreats)...all have different methodologies of rehab with the fearful dog making better decisions in the area of his/her tolerance trigger. CAT or BAT is what you want to talk over with a behaviorist or trainer with the knowledge.
Smart, sad dog
-
Andrew just left for a 10 day trip. He's been packing all day, and we just took everything down to the car. He came back upstairs to say goodbye to the kids. Booger sat on his feet & leaned against his leg & made a grumbly noise. He stared at the floor & wouldn't make eye contact. He knew Andrew was leaving, and he was sad
-
Oh so sad
but just imagine how happy he'll be when Andrew returns 
-
The reunion will be joyful.
-
My DH leaves for long trips all the time, and Jack always knows what is going on and hates it….however, every time he comes back, no matter if it has been 2 weeks or 6 months, Jack is just so happy to see him. I always am impressed that Jack remembers him. But, as everyone has said, the reunion will be so sweet....
