Be afraid, roomies. Be very afraid.

related: I don’t complain.

Greta from Sydney couldn’t help but take notice when her new flatmate affixed no fewer than five pleas for feline containment around their home. Greta’s takeaway? “I don’t think I’m supposed to let the cat out.”

While this plethora of preventative postings might strike some as overkill, Jens from Oman informs us that his flatmate did in fact release his friend Jerry’s cat “while in an intoxicated state.” Though the cat was recovered, a “massive reward” was required, prompting Jerry to place these helpful notes on their front door.

Finally, we received this bulletin from Michelle and Guy, spotted at their local postoffice in Harpers Ferry, West Virginia. Though not actually passive-aggressive, we still felt that it was our civic duty to share this alarming note with our readers.

related: I’M A CAT. It’s okay for me to play outside. Seriously.

So, like, “our friend got really drunk and stayed in our room, but when she got up to pee, she opened up the door to our suitemate’s room instead of the bathroom and peed on the rug,” writes our submitter in California. “It was apparently his favorite rug and since he’s spoiled, he asked her to get him a new one.”

Um, okay. “Spoiled,” or not, I’m gonna have to side with the dude here. Offering to clean/replace the rug seems like the very least Drunky McDrunkface could do, no?

related: You’re not wrong, Walter.

Writes an anonymous roommate  in Virginia: “Apparently living with me and my roommates is so terrible that after leaving the house, this girl felt the need to advise [my other] ‘rooms’ to stay at her boyfriend’s house and not with us.” Adds our (not-at-all bitter) submitter: “The only batteries she needs to recharge are the ones that go in her vibrator.”

related: Why can’t we all just get along? Don’t be bitches!

Really, folks? You share a kitchen and a bathroom, and this is all you’ve got to complain about?

::sigh:: White bread problems…

(Thanks to Sarah Jane in Australia and Michelle in Canada for submitting!)

related: Is this a thing now?

extra credit: Toasted Toast Post-it Notes [Amazon.com]

Elana in North Rustico, Canada spotted this tart exchange inside her friend Shannon’s fridge.

Shannon, no doubt hoping to avoid getting called out for interfering with her roommate’s yogurt supply, wrote the first note. Her roommate Michael, perhaps taking issue with the note’s mildly patronizing tone, fired back with his own written retort. And as for the yogurts? Yup, still in the fridge.

related: Who’s the smartass?

So, Jen in Ontario, Canada just moved into a new shared living arrangement…with a 50-something lady. “I thought having an older person as a roommate would more peaceful,” she explains. “Turns out I was wrong.” Communication skills, it seems, aren’t one of those things that necessarily improve with age.

Within a week of moving in, Jen says, there were “helpful instructions” taped up all around the house. After that, the notes just kept coming, accusing Jen of everything from filling the dishwasher with soy sauce to sabotaging the tea kettle — always book-ended by a “Pls” and “Thank you,” of course. Because that’s how mature adults act.

related: The Post-it Wars

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