“My friends’ mom has four cigarette-smoking daughters under one roof,” says our submitter in Cleveland. “She had to reach her breaking point eventually.”

related: Love, the Landlord

Jon’s assessment after a night of partying: “Totally worth it.”

related: Late night beer parties!

When he first moved in, says our submitter in Melbourne, the apartment across the way already had the two big handmade nuclear posts in the window. Two months later, up went the note at the left about unneighborly acts like obscene “jestures” (which makes me envision of motley crew of courtyard jugglers giving the finger to nosy busybodies in the apartments above.) The cigarette notice is the latest addition.

Says our submitter: “I’m tempted to strut about without trousers and see if I can get a mention, too!”

In the meantime, his other neighbors seem to already be getting in on the act.

(As always, just click on the images to enlarge them.)

related: WiFi for Passive-Aggressives

While helping her dad clean out her grandmother’s old apartment, Amanda says she found this incredible “love note” tucked in a bottom drawer. “All my dad could say was, ‘Well, romance wasn’t always your grandfather’s strong suit.’”

related:  I don’t want to hear another damn word about flowers.

“My boyfriend, Alex, lives in a high-rise apartment building occupied by college/university students — people you’d think would have some intelligence,” says Meghan in Hamilton, Ontario.

Of course, a little learning is a dangerous thing. In Alex’s building, this seemingly civil request from one of the building’s residents garnered the following indignant response.

But Meghan says her favorite thing about this exchange is the placement — right next that big ol’ city-mandated “no smoking” sign.

related: Cigarettes & energy drinks

Juliet from Los Angeles came upon this sign near the summit of a 12-km hike up Turrialba Volcano, in Costa Rica. “As I stared down into giant crater of the active volcano, dotted with sulfur pools, I realized the sign was right. Swimming in those pools probably wasn’t worth the expense.”

The dryly practical approach seems to be a popular one at tourist locations around the world — especially zoos, such as this one on Langkawi Island:

Meanwhile, this resort in the Bahamas adds its own whimsical twist:

related: You don’t need a cell phone to talk to God