This is a great story of revenge and karma as told by the originator of the Instant Karma Noisy Neighbor Device who had finally had enough of calling the police and taking these horrible neighbors to court to get some peace and quiet.
Learn how to get revenge on your upstairs neighbors and live a better life. It all starts with a giant speaker, microphones and other gear, to reproduce noise the upstairs neighbor make.
You will find inspiration in this story.