Buy chromium of amazon, its dirt cheap, non toxic, and melts at body temp, so the metal chunk will turn to liquid in your hands. Flick it at any aluminum your neighbour has, sidings, ladders, car engine if the bonnet is open Etc. 

Chromium reacts with aluminum and makes it incredibly brittle. Engines will literally disentegrate when you start them, any other alumjnum will fall apart when you try to use it....

Sorry, meant gallijm, no idea why i said chromium lol

Gallium, need to proof read before submitting fml

I am not sure how I can do this, but the thing is, my neighbor is always making noise. Slamming with doors and grandkids running in the house with shoes on.

What I would like to do is mess with his volume of the TV or radio :)

My neighbours already dont like me because my cats entered their house a few times. Not sure why they hate cats so much but i decided if they complained too much for no reason, I will pick up some cat poop and throw it inside their house. 

one of mine hates the developments ive put in on the farm i alway win the planning argument hes an idiot.

ive thought about fucking with him and marking up areas with stakes for more buildings just for fun. No plans to put anything in atm.

Once it gets past the point of retrieving, move out. Then turn your old house into a HMO (house if multiple occupants). Rent out the rooms almost exclusively to musicians and students. This will break the spirit of your previously problematic neighbour. They will end up losing a long run argument with the local council and be forced to move. 

I wish I could get back at my neighbors right now as she is noting but a money grabbing bitch that she wants everything I have. I've told her no end of times no and she tells these lies to me and I know she is

You can order  10 pizzas in their name and have them delivered to their address. 

hahaha these replies are classic,

but yeah just blast your music and if you want to really annoy the heck out of them, play the same song over and over again hahaha

I’ve found that a disconnected water supply is one of the fastest ways to get people out of a building. Go out into the street and look for the neighbour’s water access. Open the man hole cover and reach down until you find the valve. Use a tool of some kind to gain traction on the valve and turn it off. Soon enough your pesky neighbours will be out in the street, wondering why it’s only their house that has unflushable shits in it. 

glue in the house key and vehicle key locks, Cash on delivery goods to the house, using social media to rumour mill about the person from anything from being a peeper to a criminal, getting your dog to poop on his garden and path and leaving it there, keying his car, I once found painting someone's windows in the night was not counted as a funny drunken prank always worth registering groups at the adress e.g. region KKK group.   These are all hypothetical and of course i wouldn't and do not encourage them

Easy. Make him create am account for MR. Then, contact Izzy. Tell him to make his hustle tasks only posting into the outside forums. It'll make him go crazy BECAUSE HOLY FUCK AM I EVER TIRED OF GETTING THESE. SOMEONE PUT ME OUT OF MY MISERY, GAWDAMN

Late at night rev your sports car and burn rubber in your driveway or parking lot so you wake up all your neighbors. Due this because they have been complaining of loud noises from your apartment for weeks and haven't told you to your face just complained to the building manager.

There's an oldie but a goodie that I don't think has been mentioned yet. It's the old "pizza delivery" scheme. You know what I'm talking about. Just because it's an old and used idea doesn't mean it is a bad one. There's a reason it's been around forever. It's easy and effective. But if that doesn't satisfy your urge for revenge, just take a shit on his doorstep.

I had new neighbours move in. Nice enough family but the guy was trying a bit too hard to make friends. Don’t get me wrong, he’s a nice enough guy, it’s just you don’t want your neighbours being overly friendly. You don’t want them in your house all the time and being a part of your life. They live too close for that. There’s an unwritten rule there, a line you didn’t cross. Sure we’re friendly but it only works if we maintain an elevated respect for each other’s privacy. 
 

Anyway, he continues catching me for a chat every time I walk out the door. This is starting to become a nuisance, so I decided to nip it in the bud. A couple of days later he’s out painting his wooden fence. I went out and started talking to him about wood treatments. I went into incredible depth about it. The different ways preservatives are made, correct application, the behaviour of wood fibres and the performance of various products against a variety of weather conditions. On and on I went, in punishing detail. The conversation ended with him more or less backing off into his house making excuses about why he had to h on in.

Success! He now never says more than a polite hello to me.