Ya, this could be fun. Illegal or not. In passing tell them some guy in a suit stopped by your place and was asking you all kinds of questions about them. Have a friend they don't know dress up real official and bang on their door asking all kinds of personal questions. Have this same guy park on the street and watch their house with binoculars, then point it out to them. Personally, i don't think their is anything you can do about it, but their is no crime in you having fun with it.
start mailing drugs around the country using their mailing address. or send gay porn to their address. or put tuna fish oil in their heater vent in their car, or tape a old dead fish to their muffler, the muffler will bake the fish and the derstroy the tape.
Its not really the 360 that pisses me off about it, its the fact that he gets everything handed to him and im pass the stage in my life where I would just knock on the door and beat him up. I want him to feel the pain of actually having to work for a living. He has screwed over alot of my friends (money wise) and laughs about it but he does it where there really is no way to prove it.
I dunno I was just bored and was sitting there thinking about going to beat the shit out of him but then I figured maybe there is something I can do legally to get him fucked over but I wasnt exactly sure what actions to take.