Bust a cap in they ass!
Well, then you can play too. Go buy the biggest loudest, craisiest drill you can find. Wait for the neighbor to drill through, then you drill back and scare the crap out of him.
Or you can get a chainsaw, and randomly start it in the house.
OO OO you can stage a bs murder, but have cameras to tape it so if the cops show you can sayyour making a movie. Make sure weirdo is home. Get a plan together. You will need dummy body parts, and fake blood and guts. A body bag. Some rusty cutting impliments. A chainsaw. So what you do is easy, cary a budy in the body bag up the stairs. have everything prepped. When going up the stairs make a bunch of noise. About the body. lol. now hopefuly he will look through the holes he drilled. and there you are, chopping up body parts in a tub. dummy body parts. If that does not scare the crap out of him I do not know what will.