Meeting the neighbor

Last night there was such a horrendous pounding on the door that I wasn't even sure it was the door. I open the door and there's this strange woman standing off to the side smoking a cigarette. Our exchange goes like this...
Me: "Hello?"
Psyco woman: "Can you keep your comments to yourself?"
Me: "Excuse me?"
Psyco: "Do you think I can't hear you? Keep your comments to yourself!"
Me: "What?!"
Psyco: "Do you speak English or do you only speak American?"
Me: (jaw hanging open)
Psyco: "Fuck off!"
Me: (slamming the door shut as Psyco walks away)
So I guess that was my neighbor, who I've never even seen, let alone met, in the year and a half that I've lived here. She obviously thought I was Deanna with the American comment. Why would we talk about some stranger we've never seen? We hear people knocking on her door every day all day...drug traffic, I'm sure. Even if she could hear us talking from inside our house, we haven't talked about her. Must be the voices in her head...lol! Regardless, it's a bit scary to have a stranger show up at your door and bitch you out for something you haven't a clue about. Deanna says she does this kind of thing about once a year. Hopefully, I can get away with not seeing the woman for another year and a half!