My name is Rocky!

I know I don't need to explain boxers to you as this is what you all do, but Rocky has all the traits. Loyal to family, active, loves company but is very much ok alone, sleeps great in his crate through the night. However, Rocky has not adjusted well to our very busy neighborhood with walkers, runner, bikers, and delivery people. He is not trustful of strangers and continues to bark at them and "test" them upon entry to our property. He does have a biting incident in which a neighbor walked up on him while he was cooling from a hot walk. Although she should have not walked up on him, she did and he did bite her arm. She is recovered fine. My husband and I do not have the lifestyle to drop everything and re-train him out of his distrust and anxiety around strangers. Nor do we want our visitors to be afraid to visit. He does do great on a shock collar. I honestly do not believe him to be a dangerous dog, but one that right now, seems to not like or trust strangers. (cont below)