- There's a traffic accident on the street nearby and they're looking for someone who witnessed it
- Altercation at a neighbor's house and they come inform us what was going on
- A neighbor called the police and they're looking for the address
- Coordinating parking for a medical incident down the road
- Welfare check on the kids because the neighbors heard screaming
Just a bunch of little stuff over the years.
In this case they came to talk about the cameras he put up.
It's funny, reading that list, it all gives me an instinctual "less-nice neighborhood I wouldn't want to live in" vibe. But I'm sure it's perfectly normal for people who live in more exciting places.
For me that would be annoying.
In my case, IIRC, once like 15-20 years ago for some paperwork that needs an adress verified by the police, or something like that. I don't remember if it was for me or my wife. I don't remember the details.