I am sure he/she is to you. However, how does the animal react to strangers like the UPS man, the postman, or the teenage girl that he has never met?
I had a Labrador Retriever that started being aggressive at about six months of age. He was a beautiful animal. He was smart and very good on leash. By the time he was 2 years old, he was growling at the 9 year old girl next door and he tried to kill our cat. We took him to the local shelter. They eventually put him to sleep after he tried to bite two different people. They could not believe we had kept that dog for two years. I loved that dog. However, he was not right. He had a screw loose. I could not trust him around my family.
Since that time I have bred hundreds of Beagles and never had an aggressive dog. If I had one, I would have chosen to neuter or spay the animal so this characteristic could not be repeated. Unfortunately, this is the characteristic that many Pit Bull breeders have chosen to emulate.
Well my pit is a rescue, who had been spaded. I guess they let her go because she was not a fighter but a lover.
She is the joy of my life