Rowdy,
I had this same thing happen some years ago to my step son.
We never said anything before the attack but we were always worried about a pitbull next door.
He was never outside except for being let out to do his business. The problem was he would run into our yard to do it. When any of us were outside and he was let out, he would run straight at us and start barking like a lunatic.
I would jump in front of my kid and yell at the dog and it would stop like it had air breaks.
Well, eventually my kid was outside by himself he was 12 at the time but he is mildly autistic. The dog was let out and he ran at my kid and bit him in the calf.
When I got home I was told about it and went to the neighbor who I really never had much communication with. She had only been in the neighborhood for a couple years but wasn't very sociable.
I told her what happened and she said, "I know, your wife was here B******** about it."
She had told my wife to put a band aid on it because it was small teeth.
Well, I told her I would call the police and she would get the Doctor bill as I wasn't turning it into my insurance.
She slammed the door and was done.
I called a friend of mine who worked with the local PD and asked what I should do.
Officially he said to sue her. He would come out and take a report. He did but I didn't take her to court. She was interviewed by the police and was told if the dog came on my property again I would have the right to shoot it to defend my home and family. (It is illegal to discharge a firearm in that community for any other reason).
I went to her and told her if I saw the dog outside in my yard again, I would shoot the dog dead in it's tracks and I would have justification for doing it.
She thought I was full of it.
I shot the dog three days later when it came into my yard to do it's business. When he did his business, I did my business.
She freaked and it was a swell time on the block that night.
A good time was had by all.
I have no compunction about killing the dog. I love dogs but as was said before, I love my kids more.
She tried to get the dog but I wouldn't let her come on my property and I called the cops myself. I wanted them to see where the dog was.
She had no recourse but to try and make my life miserable.
She failed. She moved out after the kids on the other side of her smeared vicks vapo rub on her house windows and on her car windows during halloween.
Thought that was a hoot as she was the only one who git it.