However, what is the real price of an 8 year old boy? Lets say I go and kill little Mark Zuckerberg. By doing so I have zapped almost 100B dollars from the economy and paid his parents 10-20 million. I'm doing a disservice to everyone by killing him, should I also pay everyone who Zuckerberg will make a future millionaire, how will I know this?
Even in your example, how does his neighbor know what the perceived cost of your action are? What if his property value goes down, because of your party and noise making? How will ever be able to calculate that cost? What if he has his elderly sick mother staying over the weekend? How does he put a price on his mother's piece of mind?