Okay: we used to have neighbors, that fought at night, all the time.
They were married and had young children.
I am talking, screaming, swearing, yelling, things being thrown (we could hear it)... and we called the cops.
Others did too.
Cops went to their home, regularly.
LATE at night.
We don't care if they knew it was us.
But the cops, per our telling them, kept it ANONYMOUS.
You can do that.
Now, on about 2 occasions, their child, about 7 at the time, came to our home. Telling us her parents are fighting. They were scared. They came to use OUR phone, to call the Cops.
Yes.
Isn't that pathetic? The kids... had to figure out what to do, themselves. Kids. Having to deal with this.
The child, even told us that her Dad tore the phone off the wall.
In your case, I am sure, you are not the ONLY neighbors they have? I'm sure, there are other neighbors on either side of that neighbors home, too.