Hi,
For years the "universal" sign in my neighborhood that you don't want trick or treaters at your house has been to turn the lights out front off (porch lights, security lights, etc.)
For a number of years, there have been fewer and fewer lights, as there just aren't many kids here and nobody wants to attract the rowdies. This was the first year the street was absolutely black.
Now Saturday night there was a party. A real one! The family that hosted it has about a gazillion relatives, and I'm sure everyone got plenty of candy!
Rick C