Claire and her mom found this relic of childhood while going through a filing cabinet over Christmas. “Neither of us know what prompted it,” Claire says, “though apparently I was mad enough about something to write her this note, but not mad enough to go to bed without her telling me goodnight. Boy, was I one passive-aggressive 11-year-old!”

related: I’ll have you know

Mad Libs, anyone?

“My stepsister, Grace, kept ripping the tab off the cereal box every time she tried to close it,” writes Danielle in Michigan. “My mom got very frustrated and taped this note to the top of the box” — an act I’m sure only helped to strengthen to bond of the stepmom/stepdaughter relationship.

Wouldn’t you love to hear Grace’s side of the story?

related: cereal killer

“My roommate in college was allergic to everything,” says Casey in Watsonville, California — and she talked about it ad nauseam. “For her birthday sophomore year, we went to buy her a cake but of course she was allergic to everything good. So in the end, I just got a cake I liked and we bought her some crappy vegan thing that wouldn’t make her break out.”

(The cake, Casey says, was “delicious.”)

related: “I don’t need a birthday cake,” I said.

extra credit: CakeWrecks.com

Vaguely fishy notes like this one from Toronto are pretty common around office kitchens…

…but I’ve never seen a note that gets right to the point quite like this one from Amber in San Francisco.

related: It’s not a race (it’s a social construct)

“I live in a condominium building that is popular with the elderly,” writes our submitter from the Chicagoland area. Recently, he says, the building’s board of managers put copies of this note in everyone’s mailboxes and posted it in the lobby (so guests wouldn’t be spared the details, either.)

Adds our submitter: “I don’t know what’s more inappropriate: losing control of your bowels in the hallway or distributing this memo to all the residents.”

Meanwhile in depressing economic news, Sara in Kansas City, Missouri says her company’s last Christmas party was held in — wait for it — the rec center of a local retirement home. Revelers who stopped by the restroom were greeted with this cheerful reminder of OMG SHOOT ME NOW.

related: Dr. Freud’s Salon Scatologica

Imma cut you off before you start with the “that’s not passive-aggressive” bidness. It’s “WTF Friday,” and anything goes!

First up: Linda spotted this spray-painted notice in front of a dumpster on the streets of San Francisco. “I have no idea what breast cancer trash they are trying to fend off, or what ‘breast cancer trash’ is supposed to mean,” she says.

Meanwhile, Susan in Silverdale, Washington did a doubletake when she drove past this sign on her way home one day. (She took a picture, but did not attempt to make good on the offer.)

Austin was similarly disarmed upon spotting this notice outside a shop in Dublin, Ireland.

And longtime troublemaker Wade had a good chuckle when spotted this sign outside a child care center (run by the Addams’ Family?) in Washington, D.C.

related: professionally done by Asians