bdgr many of the things you posted were a little more severe than what I had in mind (But apparently you’ve read some of the same books I have. George Hayduke makes fun reading!). Though I did like your police tape one. He’s just paranoid enough that something like that would totally unhinge him. 
Unfortunately, he lives in a gated apartment complex, so that’s out. 
And handy, sometimes people just gotta be taught a lesson, which is what I’m wanting to do here.
Yeah, at least on of those came from hayduke. Another of my favorites, its original, and please nobody actually do this!
Go up the persons Garage, spray ether(starting fluid)all around thier garage door, as much as posible, so it really stinks of ether. Then call the fire dept. Tell them you were walking your dog and you smelled ether coming out this guys garage. The fire dept. will assume that it is a Meth lab, and they have a special goon squad(in our area they are certified peace officers, with guns swat gear the works) that raids these. Since its a public safety hazard, they dont need a warrant, or even to knock. You can imagine what happens next. Again, please dont try this.
What can I say, I had a mis-spent youth.
Wow, this guy really does have problems!