One night in a dorm, about 6 years back. A buddy from upstairs, big guy, over 6 foot and few years older, known to be absolutely maniac once he's drunk, came to your door, continuously knocking it very loudly and screaming from the top of his lungs: "DEATH! CIGARETTE! ONE CIGARETTE! DEATH! DEATH! BOOZE! DEATH!..." and so on. It went on for about half hours with the same intensity and me and my roommate just looked at each other. It was 3AM and we had to woke up for school in couple hours. Then he apparently noticed he couldn't achieve a cigarette from me, or anything else, punched a hole through the door and left. We had a little talk with him the next afternoon.
Now that's what I call a neighbor not quite behaving like he should in respect to others.