Slamming car doors late at night can annoy your neighbours. That's bad. Can you think of better ways to annoy your neighbours?

• Borrow their Sunday paper. Read it. Clip the coupons. Return their paper.
• Place a trail of sugar to your neighbors front porch! The ants will appreciate it.
  
• Fill a gallon jug with your pee, let it set in the sun for a few days and then dump it in his central A/C unit. The house will smell like a porta potty.
• Hang up a dozen sets of wind chimes in your yard, closest to their house.
• Send out invitations to a backyard party at their house. No need to RSVP, bring coleslaw.
  

I've just read all the answers and have concluded that all my on-line friends are mean, despicable, and seriously vindictive -- and I love you all.

My next-door neighbour was 6' 5" tall, weighed 23 stone (that's 322 lbs or 146 kg) had been in the Hitler Youth before the war, when he was a Luftwaffe mechanic. He was the strongest, loudest man I ever met, still hated Jews (he blamed them for everything from WWII and the price of petrol, to the collapse of Galloping Gertie) but he had a phobia about anything that crawled or wriggled.

One Christmas Day I found a small Eastern Brown Snake (yeah, they're poisonous) inside our house (don't ask: I don't know how it got there). I killed it, then called over the fence to Fritz and said there was a nest of them under his wood pile. He spent a good part of Christmas Day tearing down the pile looking for snakes.

I'm pretty despicable myself. >:-D

Keep your yard looking like a hoarders and public yunk yards.

Loud music. I've had 2 families thrown out because of it.

Those loud music players with that huge annoying loud bass ! I can't stand those things !

Put a flowmaster exhaust on a four banger and rev the motor at 4:30am....just trying to warm it up!

play loud music.

My neighbors are great but if I was going to be annoying this is what I'd do.

My driveway goes past their bedroom windows. So I'd drive my rumbling sports car by the windows and rev the engine at 1 or 2 in the morning. With my stereo blaring.

Use a leaf blower at 6 in the morning.

Have huge parties every weekend and have people block their driveways and have my friends relieve themselves in their bushes.

When they tire of me and want to move out, on their open house day, I will stand outside wearing a crazy outfit and scream at people passing by. All the while holding a 12 pack of beer. I will have appliances on the front porch and an old car up on blocks in the front yard.

My neibours at my first home annoyed me just by sitting on their back deck and drinking coffee on a moday morning:/ Their back yard faced mine and the first week I had moved in on a Monday morning I came running down the stairs competly naked to fetch some clothes from the laundry  and stopped dead when I was infront of my patio doors  to my deck and saw them staring across our two back yards at me :/ I did some weird stop drop and roll thing out of view and just hid ninja style in my living room .. I don't think I went out on my deck  that entire first summer I lived there...we ended up becoming great friends  though and still keep in touch :) they annoyed me that day and first summer though :/

My friends and I were being stupid and chanted a bunch of stuff once in the driveway... We were loud and probably annoyed the neighbors..

Yes, playing rap crap!!

Most to all of the morons that play this garbage do not understand simple wave mechanics and do not know that mid-range and treble are short wave lengths of high frequency. So when these waves hit walls they contact many molecules of the wall material and dissipate away as heat.

Rap crap contains much in the way of bass ( too much if you ask me ) and so these waves are long wave lengths of low frequency, When they meet a wall they go right through it because the long wave lengths do not contact as many molecules of the wall building material and thus are not dissipated away as heat but easily come through the wall to annoy people.

You could do this but remember it is inhumane!