Ben in California says he got this notice in the mail a few days ago, though he’s not sure if the rest of the neighborhood got it, too. “These folks have lived there for about six months, but I’ve never talked to them. I guess now I know why.”

related: A not-so-subtle clue that your co-worker isn’t interested in small talk

Writes Jenny in San Diego: “There are four of these identical laminated signs posted at face height around the tiny front lawn of a house in my neighborhood. The lawn actually would look fine if it weren’t for the rude signs.”

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DO YOU KNOW THESE DOGS??

“To be fair,” says Loren in Ypsilanti, Michigan,“the owner does live on a popular dog-walking street. The trees are also gigantic, so I’m sure they have a ton of leaves to rake in the fall. Still, this seems a little harsh.”

related: House for rent — we have mold and roaches!

“About five months ago,” writes Catherine in Massachusetts, a new tenant moved in and began a new exercise regime: running back and forth in the building hallways. “His/her gait is rather lumbering and resonates throughout our apartment,” Catherine says. “We were startled at first, but have come to giggle over this frequent disruption. Apparently, one of our neighbors isn’t laughing.”

From there, things began to escalate. “Fortunately,” Catherine says, the ensuing flame war “just goes to show that most of our neighbors have a great sense of humor.”

related: The very delicate elevator

I know I’m asking for trouble here, but when John in Missouri passed along this exchange between his father’s neighbor (an “interested animal lover”) and his father (a reluctant one), I just couldn’t resist.

Confidential to John’s Dad: I would like to subscribe to your newsletter.

related: The Great Outdoor Cat Debate of 2012

Writes our submitter in Canada: “This is my neighbour’s cat, Byron. He’s a lovely boy, but given the chance, he’ll steal into my apartment and scarf down my cats’ kibble. The other day Bryon visited sporting this new heart-shaped tag.”

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Please stop feeding my cat!

Welcome to the neighbourhood! xo, Carly Rae Jepsen

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Or I’ll call the cops, maybe?

Our anonymous submitter in Toronto spotted this note — one copy in the elevator, and three copies taped to a couch that had been left near the dumpster in the building’s parking lot.

Dear Sir: Your “behaiviour,” spelling, and poor understanding of evolutionary theory don’t suggest that you graduated at the top of your class, either.

related: Who says Canadians are nice?

extra credit: Humans are still evolving, scientists say