Explains Megan: “My grandmother is extremely particular about her grandchildren when it comes to writing letters, especially handwritten thank-you notes. (My cousins and I often spend family events comparing the consequences we’ve endured for taking too long to mail the proper correspondence.)”

Megan recently moved, so she didn’t get around to sending Grandma a heartfelt thank you for her Valentine’s gift as quickly as usual. Instead, she got beaten to the punch. Within a week and a half of Valentine’s Day, this postcard (from guess who?) showed up in Megan’s mailbox.

related: P.S. Do you they teach you thank notes at school?

So, Dana was hanging out at a friend’s place with a bunch of people, and — as many people do these days — was texting back and forth with her significant other in the midst of the conversation. Our submitter didn’t give any indication that this was a formal dinner party or anything like that, but apparently the host was so enraged by Dana’s breach of etiquette that he or she left the room to type, print, and sign this note, and then — due to the lack of an available notary public — handed it directly to Dana.

related: We’re ALL busy, man.

I really hope to have the opportunity to work the coinage “pole vulture” into conversation this week.

Apparently, they’re a serious problem at Jessica’s pole dancing studio of choice in Sydney, Australia.

related: Yo, sweaty beasts!

At the time he received this note in his letterbox, Mike was living in Copenhagen, Denmark, where the apartments buildings tend to be rather close together. “My neighbor’s window is about 15 feet away from mine, across an alley,” Mike explains. “I can see her; she can see me.”

Though the wording of this note is considerably more polite compared to similar requests from other parts of the world, it still raised several questions in Mike’s mind. First of all, he says, “I have no idea how she knows I’m American. It’s not like I’m sitting in front of my computer, draped in an American flag.”

But more importantly, he wonders, “What’s the etiquette here? I thought this was just one of the quirks of urban living. You hear other people’s music, smell their cooking, and glimpse them through the window every once in awhile. I don’t really see why I should be the one to close my blinds and sit in the dark all day, since they’re the ones that have a problem with it.”

Well, what say you, peanut gallery?

Mike’s transcription: Hello US Citizen! It’s your neighbor speaking… I have a problem with your “window manners” — It’s quite problematic having you sitting in facel(?)-front many hours a day without making it cover or anything. I feel overlooked [Danglish for 'watched'] and compromised. XXX, Mel.

related: Be more private with yourself!

Writes Natalie in Pennsylvania: “My mother (who is unfortunately on Facebook) noticed that some of my extended family had wished my twin sister happy birthday but not me.”

Although Natalie herself couldn’t care less, her mother — “a master of both e-mail networking and Jewish guilt”—  took it upon herself to write this e-mail and send it out everyone in the entire family. “And I mean EVERYONE,” Natalie says — “my cousins in Mexico got it!” [Face palm]

(If you can’t decipher the hideous font, mouse over the image for a translation.)

(What would Jessica and Elizabeth Wakefield do? Find out in Sweet Valley High #144: Relative Intentions!)

related: Yet another reason why you shouldn’t be friends with your parents on Facebook

“Personally, I think all places should post this sign,” says Molly in Los Angeles.

These days, it appears a lot of cash register-operators agree with Molly (and the fancy shop in Studio City where she buys her cheese).

To wit: exhibit a, from Betsey in Sumter, S.C.

Exhibit b) spotted by Otto at a sandwich shop in Frisco, Colorado

And so on and so forth.

But I’d like to draw your attention to this piece,  spotted by Jenna at a Pathmark pharmacy in Bayshore, New York, as a true masterpiece of the genre. With just a few carefully crafted words, it transforms this common sentiment into the ultimate in shame-inducing passive-aggression.

related: Top five musical crimes perpetrated by record store customers in the 90s and 2000s

“When I first moved to Chicago,” says Mike, “my grandfather told me about parking in the winter. One would dig out a spot and insert a chair, reserving the spot for your trouble.” One of his neighbors, it seems, didn’t get the benefit of such grandfatherly wisdom.

Neither, apparently, did Chris…who made the mistake of parking in an empty space outside his friend’s house in Chicago for few hours. When he got home, he found this note affixed to his mirror with glue.

And of course, Chicago isn’t the only city that takes its snow-shoveling etiquette seriously.

Just ask Anna in New Jersey…

Or Brooke in Indianapolis…

Or Amy in Washington, D.C…

Or Larry in Silver Spring, Maryland…

Or Kristin in Pittsburgh…

Olivia in Albany…

Or Chris in Boston…where they’re always keepin’ it classy.

related: Boston, a place for friends

“Our office manager was upset that people weren’t responding promptly enough to the Christmas party invitation,” says our submitter in San Diego.

In keeping with the holiday spirit of things, the office manager  apparently channeled that anger into the posting of this (uncredited) About.com excerpt in the office kitchen, for the edification of all. How that’s for savoir faire?

related: An evening of congenial abnormality