Scoffs our submitter in Los Angeles: “Because as a healthy, functioning, adult, you really need to be reminded that you’re a good person for cleaning up after yourself.”

related: Three never-ending office arguments

Eerac and I met up in Barcelona last week, where we climbed lots and lots of stairs. The one time we didn’t, of course, the Metro station totally called us out.

Eric and I are still climbing stairs (now in Poland and Portugal, respectively), where we haven’t yet seen any similar signs. Back in the States, however, Christine in L.A. spotted this rather harsh version in the elevator of a 7-story university residence hall.

related: Buffalo, please use the elevator

Kate in Los Angeles likened this office post-it pile-on to “the Toy Story of the office kitchen — when you’re away, all of the inanimate objects start talking.”

So…Dreamworks, Pixar — let’s talk options, shall we? (“It’s Toy Story meets The Office — a guaranteed hit in all four quadrants!)

related: The paper towels want a voice in where they live, okay?

What’s wrong with America today? If you ask Jason in Los Angeles, it’s people who don’t return their shopping carts. At least, that’s the action that prompted this note (which was originally attached the the upright cart itself).

That note, in turn, inspired this Dadaist creation:

related: Untitled (Broken Glass)

Well…lots of stuff.

And yet, somehow, the employees at this office in Edmonton still can’t quite make TP happen. (Maybe wrestling grizzlies is more their forte?)

Perhaps a visual aid (like this one from a Los Angeles apartment share) would be helpful?

Or maybe just a bit more encouragement would push someone over the edge?

(Probably not, though.)

related: Five approaches to TP maintenance

Tim lives in Northwest D.C., “at the front of the gentrification wave” flowing east from Dupont Circle. “We have (only) one rundown/uninhabited house on the block,” Tim says, “and this morning one of the other neighbors decided to mow the front lawn to tidy it’s appearance a bit.” While taking out the trash later that evening, Tim noticed that his neighbor’s good deed had been rewarded by this neighborly thank-you note.

(As far as the smell goes…perhaps some people were under the same mistaken impression as those near this West Hollywood residence?)

related: Gentrification is insanit(ar)y

Hey, here’s some advice! If you’re looking to improve your relationships with your roommates, communicating through the erasable whiteboard might not be the most effective way to go.

(Above, from a sorority house in L.A.; below, from a shared apartment in Chicago.)

related: Facebook, another poor medium for mediating roommate disputes

So, which of these warnings would most readily scare you into compliance?

Exhibit a) from an alley in York, U.K.

Exhibit b) from a sharehouse in Australia

or Exhibit c) spotted by Robert on a film shoot in Los Angeles?

related: Wishin’ and hopin’