How it started?
Last weekend, I had a little Halloween party in my house, all the theme ornaments brought the children from the neighborhood attention to my house. Especially because it's not a common celebration where I live (Brazil).
That night, like every kid in the world, they needed to do something stupid, so they turned off the electricity of the house.
You can do that just by turning off the switch that stays in front of the house. Usually, this switch is protected by a padlock, but not in my house until that day.
So, next day I went out and bought a padlock...
1º Day - Children tried to break the padlock with a rock that they have found. No damage, just a few scratches on the paint. I've tried to run after but I couldn't find anyone, just some guy entering a house and I cant have sure that was him.
2º Day - Children starts to throw rocks into my house, still no damage, but with a little of accuracy (or lucky) they can break windows or my motorcycle.
I really do not know what to do, I can not stay outside waiting for them to show up, because they come in some random times, and I can't afford for some kind of surveillance equipment.
I tried what einpoklum suggest and here is the results:
When i meet the first parent he said that those children deserve to get shot, so i took an step back and stopped worrying about them and a few days later they just stopped attacking my house.