Open letter, but mostly to my neighbor

Are some parents so consumed with the idea of being "friends" with their children they cannot see something staring them in the face?
I am all for being my child's advocate and being the person they can count on.  But, I also think we should be able to step back and be honest with ourselves .... and yes, be honest with our children.
If someone came to me and said one of my children hit their child, right away I would have a suspect.
If someone said one of my children mouthed-off at them, I would suspect the person making the complaint.
My point is, I more or less have an idea of what my children are capable of, but within reason.  Most definitely any complaint would warrant a conversation with my child to first get their side.

Now, if my child always had a complaint in which the other person always seemed to be wrong, I think at some point I would have to ask "What did you do?"

So my advice to my neighbor is - instead of trying to be your daughters' BFF, be her parent. She clearly has no guidance and so craves a parent.  You have used most of us in the development as free weekend babysitters without even a proper introduction.  Yet as your child moves from house to house after burning bridges,  you choose to condone your child's disposable mentality.
While you still have the opportunity to question your child's behavior, ask "what was your role in the situation?" Have her start from the beginning, not just from the part where she feels wronged.

We all want to believe the best in our children.  But being the best is not being perfect, it is in admitting mistakes, learning from them and adjusting future behavior. 

I tell my children, I am not here to be best friends.  I am here to perform my role to the best of my abilities. There will be times I will make unpopular decisions and tough choices.  I would like for our relationship to be friendly but I certainly am not running for BFF.