I don’t ever condone passive-aggressive note-writing, but you should be warned: hard-core Diet Coke drinkers do not fool around. (Trust me — I’m a recovering addict myself.)

related: Enough with the diet sodas!

When I read this landlord’s note…

…this is roughly the image that came to mind:

Anyone else?

related: And you thought college students were foul…

Paul has lived in his apartment in Berlin for 15 months, but this note is the first time he’s heard a single complaint about his door. Especially annoying, Paul says, is the fact that it’s anonymous, “even though it could possibly have been written by only one of two people,” and that it’s written in English, “which most expats would consider an insult.”

Just another example of how — no matter smiley faces you sprinkle throughout — your oh-so-courteous anonymous note is probably just going to leave everyone more “pi**ed off.”

related: Wie bitte(r)?

extra credit: “Greetz” [urbandictionary.com]

Writes Brittney in California: “Apparently, my mom’s boyfriend was stuck with an insufficient amount of toilet paper, and being passive aggressive (because he really is) he decides to write a note about it and stick it on the mirror, rather than confront her.”

Mom’s response?

And, in the end….everybody loses!

related: I’m not here to wipe your dirty butt

I live in an apartment complex where most people know each other and are generally on good terms,” says Jin in California…or so he thought. As it turns out, there’s a pool of bold-underlined-all-caps-highlighted frustration simmering (oh-so-hilariously) just below the surface.

related: Be more private with yourself

Today’s post is dedicated to the dirty minds in the department of double entendres. (Hey there, commenters!)

The first note, as spotted by Dana in San Francisco, needs no further introduction.

Next up: Michelle in Orlando says this note was posted on the employee mailboxes at the theme park where she works. “Our uniforms include a vest made of wool,” Michelle explains, “and when the vests get wet they smell (fittingly) like wet animal.”

related: covering all the bases

As always, Facebook users are keepin’ it classy.

related: Tant pis, mon amie

extra credit: STFU, Marrieds

Writes Aimee in Sellersburg, Indiana: “My former boss used to leave these kind of notes posted on our work bulletin board constantly. It was a really boring job, so these little rays of sunshine made coming to work worth it.”

related: I don’t recall signing any bond/contact regarding your use of exclamation points!!!

“One morning last summer,” writes Stephanie in Illinois, “my brother and I arrived at the company where we worked to find these notes posted to the candy vending machine. (Mind you, it was 8:45 a.m.) Apparently, the man who fills the vending machines — a.k.a ‘Mr. Candyman’ — had failed to restock the machine for a week, and the ladies of the office had had enough.”

I mean, really. we’re talking about a serious breach of the social contract here, people!

Stephanie and I were both particularly tickled by the the “gas prices” note at top right. (“What does that even mean?” she wonders.)

Meanwhile, Lisa in Nashville spotted this note posted on the vending machine in the studio arts building at Vanderbilt University. “There had been many previous notes asking (nicely) for more Twizzlers,” Lisa says, but as desperation set in, at least one distraught staff member decided to get lyrical on Candyman’s ass.

related: The Pepsi Challenge

Amy spotted this attached to a mailbox in Monroe, North Carolina. Writes amy:  “I have no idea which flower it was (there were many that were still left on the porch), but I was impressed by the effort the victim took with this note — it was written on poster board and left up for quite a few days.”

(And the posterboard…was a birthday gift…purchased with her own money!!!)

related: “no” questions asked