Aggressive German Shepherd
To whom it may concern:
I have a male German Shepherd (neutered) who was born 01/16/2015. He is about 1 year 5 months (please excuse my terrible math abilities). Anyhow, Morpheus is his name. Morpheus was a pain as a pup, I will admit, but aggression was NEVER the issue. Morpheus was very well socialized going nearly everywhere with me and meeting nearly everyone in our path. He has always been extremely friendly, almost overly friendly if you ask me. Randomly at 9 months old Morpheus exhibited aggressive behavior and lunged at a passerby out front of our complex and was barking very aggressively. Now, Morpheus has always been a complete wuss and only ever cried or whined so hearing this new bark emerge from his snout was quite startling. Nothing at all triggered this behavior. He will even bark at a 92 year old woman, he has no shame. THANKFULLY, he has been doing very well with small children - never barking at them or exhibiting aggressive behavior towards a child, even one on a skateboard. But with that being the only good thing, this behavior has only gotten worse. He now freaks out when he sees cats, other dogs and random humans. I take him to the dog park almost every day and he reacts wonderfully with the dogs and humans within the park (NOT AGGRESSIVE AT ALL! He is known by the other owners as one of the least aggressive dogs within the park and very well behaved - HAH, if they only knew)but on his leash he is a complete monster. As a pup, he grew up with two cats in our home and played with the male cat quite often. Nothing I can think of can logically explain this behavior he has developed. I have hired a personal trainer and while I have seen decent progress regarding obedience his aggressive behavior is still at an extreme and completely unpredictable. ANY advise at all would be greatly appreciated. I don't know what to do with him.