parrybea
Lady next door to my old house was constantly looking in the windows that faced her side of the house. She wasn't subtle about it, either. She would stand in her driveway and just stare into our windows. One was my bedroom window, the other for a spare room/junk room. She also let her dogs out to charge the fence any time I was out cutting the grass. I learned when the guy who lived on the other side of her got foreclosed on that she hated people living on either side of her. She did not want neighbors, period. Then why the hell did you choose to buy a house in the city?

SundayMorning Trisha
Underpanty Man. So named because he was always wearing a speedo. Mowing the lawn? Speedo. Getting the mail? Speedo. Petitioning the HOA to allow greater variations in paint colors? Speedo. We aligned politically because he was fighting the good fight for individual rights, but I never had a serious conversation with him.

losneverless
We had some neighbors behind us that lived in a duplex/twin. Creepy Neighbor had lived there for years when nice lady neighbor moved in. Her first morning in her new home she hears from the other side of the bathroom, "I am Beelzebub". Freaked her out. Turns out Creepy Neighbor was a Satanist who was giving him a pep talk from the other side of the wall. Dude drove around in a mini van with all kinds of small Satan-y things mounted to the dashboard. Needless to say Creepy Neighbor was not a great neighbor to her. But he brought us homemade Christmas cookies every year using his family's heirloom recipe.

gangstasss
Lady next door butchered her own chickens threw the heads over the fence, swore at us when we pulled up, once flashed a flashlight at my ex coming home in the dark so he saw her then flipped him off, shook body sized crucifixes at us, put canned food on a grill pointed toward our house, threw rocks or glass at our fence and home and had someone living in a shack in her backyard with an outdoor shower. She may have died, we don't know, all we know is everything stopped and we've never seen her again. We moved before we ever found out.

blumarine
In my case, it's all my neighbours who were acting strangely. You see, I lived in an apartment that I'm also the owner of, and every time I walked pass them I always saw them either naked, half-naked or doing something inappropriate whenever I peek into their windows or suddenly unlock their doors. People these days have no shame.