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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To ask for your ideas to take petty revenges on an uninvited guest?

410 replies

guestsareinvited · 06/03/2026 13:18

Because of boring and longwinded reasons, I can't currently prevent this person from coming to stay with me whenever they like. But I don't have to treat them like a guest, because guests are invited. I have plans in place to renounce this obviously terrible arrangement as soon as possible, but in the meantime I am relieving my frustrations by plotting small, petty revenge's that aren't unreasonable.

(They have a lovey home of their own, and don't really want to stay here. They are choosing to be here specifically because they know I don't want them and to make the point that they still can. It's silly and childish and I didn't choose it. They did, and are also deliberately prolonging the situation. There's nothing to do but laugh about it, and this is intended to be in jest. Although I can't promise I won't put one or two into practice if there are good suggestions.....)

OP posts:
OSTMusTisNT · 07/03/2026 18:47

Cheapest loo roll you can find or that medicated Izal (sp?) stuff.

Change WIFI password and "forget" what you changed it too.

WildLeader · 07/03/2026 18:52

Nettie1964 · 07/03/2026 18:24

Really just stop paying the rent, why would you pay to be tortured are you insane? If you are paying rent you are a tenant. Just stop paying or change the locks. You dont need humour you need to get a spine. What a terrible example to your DD. She's rude to your partner she doesn't respect your privacy or you DD, She doesn't help or contribute what is wrong with you.

This. She can’t take you to court! Her rental isn’t legal

change the locks anyway, if she were a legal landlord she’d have to agree visits in advance and you don’t have to have her

the law says (and I’ve checked, double checked and triple checked with solicitors and shelter) you CAN change the locks to protect your right to quiet enjoyment

as long as you change them back when you leave.

blow this shit up.

tell her you’re leaving, that she has no right to visit unless you Agree. Text her this so it’s in writing and if she shows up, call the police.

then move, don’t tell her where to.

Caddycat · 07/03/2026 19:01

Put milk in a spray bottle and spray it on his bed sheets and pillow. Just a fine mist, so it's not wet. He wont notice going to bed but will get rank as the night unfolds.

sidebirds · 07/03/2026 19:10

Janeaway · 06/03/2026 13:30

Clean the toilet with their toothbrush.
Rub your arse on their pillow.

😮‍💨

DeftBrickWriter · 07/03/2026 19:11

Bigearringsbigsmile · 06/03/2026 13:22

Give them the shittest thin pillow possible.

Turn the heating up either uncomfortably hot or down too cold.
Run out of tea and coffee. Hide all the spoons.
Set the Google mini to have an alarm go off every thirty minutes day and night.
Change the WiFi password.

😂😂😂 I see you've played this game before...

Rpop · 07/03/2026 19:16

Chuck some haddock skins behind the radiator.

anon666 · 07/03/2026 19:18

Some of these are evil genius.

I was going to suggest developing a nervous tic like rhythmically clearing your throat every 5 mins. "Huh, hmmm"

Pusstachio · 07/03/2026 19:23

Also if you have a really evangelical church close by you could fill out a request for literature in her name- they really won’t leave her alone…

MerelyPlaying · 07/03/2026 19:27

This was a really good thread till all the fun sponges joined in to judge you 🙄
(You could invite them all round on consecutive nights)

Smear a tiny amount of Marmite on the clean sheets, and leave a used tissue under the pillow just to hint that someone else has been sleeping there .. maybe a worn sock in the end of the bed. A few Parmesan shavings, and then mention your unfortunate friend who’s had terrible skin problems and came to stay recently.

Change the router name to ‘factory reset’ or ‘deleting all data’ just to scare her.

Ensure that the fridge is full of containers eg jam, spread etc but they’re all empty or have just a spoonful in (that drives me mad, anyway!) A bit of lipstick round the milk/orange juice as if someone’s been drinking out of it … take a bite out of the cheese and put it back. She probably goes into your/DD’s room when you’re out - some strategically placed mousetraps or the infamous Lego bricks?

Still think the clown idea is the best one!

Pusstachio · 07/03/2026 19:35

Oh I love the idea of suggesting someone else has stayed in the bed!

Also keep itching and say you’re worried about bed bugs- you had a friend over and have heard they can jump off luggage

SpringLambton · 07/03/2026 19:50

Switch to long-life milk. The really budget skimmed milk you have to open with scissors.... and spills everywhere every time you make a cup of tea!

Swap the butter for plain old sunflower margarine.

Also downgrade all the bread, jam, cheese to the cheapest supermarket 'essential' versions you can find.

Maybe really thin loo roll? Can you still get the Izal paper version?

I'd be out of there like a shot!

DreamTheMoors · 07/03/2026 19:53

Hit up a friend to stay at the same time.
This friend will have ‘unexpectedly’ arrived 2 hours before them and you were forced to give the guest room away - the only spot left is the sofa in the living room, but you & guest #1 stay up until 2am+ watching tv.
Then you’re up & making noise by at least 5am.
This guest #1 has atrocious manners, mostly aimed at the guest you don’t want.
Interrupting, rude, boorish - I don’t have to tell you what atrocious manners are.
The food you make is either underdone chicken to steaks that look no different than shoe leather.
No tea in the house - sorry!
Lukewarm coffee you can see through.
No Cokes or any other soft drinks.
I know you can pull this off without looking obvious.
Good luck on your mission to ruin this unwelcome guest’s stay. ❤️

OSupergran · 07/03/2026 19:57

Eufyon · 07/03/2026 16:43

Didn’t strike me as an obviously humorous thread.

The Op clearly despises her mother, and her mother clearly delights in basking in the knowledge and making her daughters life unpleasant

So, rather begs the question why the OP took such an incredible risk of becoming utterly reliant on her mother for a roof over her and her child’s head.

Hence posters thinking that the “rent” which the op refers to presumably was pennies

Edited

That's not what "begging the question" means, btw... Wink

OP clearly said, yesterday, that this behaviour started once OP had committed to sell it and prior to that the mother didn't even live in the same country.

Not an obvious "incredible risk" based on actual behaviour although of course MNers who skim-read a few posts clearly feel they are in a better position to accurately assess this risk based on whatever they've imagined.

LadybirdsProcessing · 07/03/2026 20:27

TBH at this point I'd just make a decision that she's not going to get to you or succeed in winding you up and stop wasting emotional energy on a situation you can't change. Just go serenely about your life. When she does something that irritates you, remind yourself that you feeling irritated is a win for her and a knock on your quality of life.

It sounds mad and impossible, but take my word for it, it's actually easier than you think, once you've had long enough to get familiar with the full repertoire of irritating behaviours. Zen-like serenity and indifference, regardless of her comings and goings and messing with your kitchen, your way of doing things. You can't control her, but you can choose your response. It's so much less effort and mental energy than anything else!

MrsLizzieDarcy · 07/03/2026 20:40

Alexa hidden in their room and then playing random sounds on it. All night. We actually had great fun with this one. It was worth setting the alarm every 40 minutes to do. Needs to be quiet but really weird irritating noises. Plugholes emptying, dripping tap, scissors cutting.

Passenger42 · 07/03/2026 20:46

Sell the bed that they use to sleep in, put it on Facebook marketplace and once it’s gone remove the cushions off the sofa and store in your room at night. Then they will have to sleep on the floor.

make sure your out when they arrive and turn off the water at the mains in the street (rather than the stopcock under the sink) they will then think something has gone wrong with the plumbing as will have no water. Accuse them of breaking the boiler and associated repair costs! Then go out for the evening and leave them to it.

SuziQuinto · 07/03/2026 20:48

Rpop · 07/03/2026 19:16

Chuck some haddock skins behind the radiator.

This again! It'll stink out the whole house so why would she do that?

Eufyon · 07/03/2026 20:51

OSupergran · 07/03/2026 19:57

That's not what "begging the question" means, btw... Wink

OP clearly said, yesterday, that this behaviour started once OP had committed to sell it and prior to that the mother didn't even live in the same country.

Not an obvious "incredible risk" based on actual behaviour although of course MNers who skim-read a few posts clearly feel they are in a better position to accurately assess this risk based on whatever they've imagined.

What are you on about 😀

Eufyon · 07/03/2026 20:55

OSupergran · 06/03/2026 14:23

Fill pillowcase with live bees
Put honey in their comb
Change bedroom light bulb to deadly lasers
Fill bath with angry pirhanas
Fill their shoes with super glue
Swap your hand soaps for Baylis and Harding

😁

LoyalMember · 07/03/2026 21:02

Sign them up for a subscription for Japanese scat porn.

Newyearawaits · 07/03/2026 21:16

OP, this is probably costing you emotionally
Let it go

Gogo4 · 07/03/2026 21:17

NoahDia · 06/03/2026 13:24

Who owns or rents the house?

If it's you then they are your guest.

And this thread is ridiculous.

Do you know it's not compulsory to read every post/ response on here? You can just scroll past if not of interest to you.

Forestgreenblue · 07/03/2026 21:20

Freeze hot dog juice as ice cubes.

WiddlinDiddlin · 07/03/2026 21:22

Sand in her vaseline. Or expensive facecream. Or a pot you leave out so she thinks its your and will nick it.

Prawn or two behind something close to the bed so its particularly strong when lying down.

NoahDia · 07/03/2026 21:31

Gogo4 · 07/03/2026 21:17

Do you know it's not compulsory to read every post/ response on here? You can just scroll past if not of interest to you.

Pot actually shagging the kettle there.

What makes you think I wasn't interested?

If I wasn't, I wouldn't have replied 🤔