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Share your dilemmas and get honest opinions from other Mumsnetters.

Random things you believed as a child light hearted

241 replies

NimbleHiker · 14/02/2026 15:36

I thought that my neighbours were moving their furniture about when it thundered. I thought that the moon was made of cheese. I thought that periods started on the first day of each month.

OP posts:
MrsAvocet · 15/02/2026 01:02

I grew up in a town with a big railway viaduct and was always curious about how they built the arches. My Dad told me that it was built upside down in a wooden frame to keep the bricks in place and then flipped over when it was finished. I believed it for an embarrassingly long time,

TrishM80 · 15/02/2026 01:11

Not read the full thread so some have probably been repeated

I believed everything back in the old days was in black & white.

I believed if a car overtook you, and you then re-overtook that same car, that you'd have to start shooting at each other.

My town had a (traffic) roundabout built in the 80s and my parents told us they were bringing us into town to see the new roundabout. I thought they meant it was a playground roundabout and was very excited to go see it, so was very disappointed to discover it was only a fucking road that went round in a circle!

swallowthelightonthestairs · 15/02/2026 01:17

I firmly believed that those old gas engineering vans that had Gas written on the side were full of the stuff, and if someone carelessly chucked a fag end or a lighted match near them they would explode

bellabelly · 15/02/2026 01:46

ThatsRoughBuddy · 14/02/2026 16:32

I thought this was how trains went over the Forth Bridge. The first time I saw one go over I was astounded at my stupidity!

(photo incoming)

I thought the exact same about the bridge at Plymouth that goes into Cornwall!

Jimmyneutronsforehead · 15/02/2026 02:14

I really thought African killer bees, quicksand and the sun imploding would be a much more significant threat to my life in Yorkshire than they actually are.

Heyehyxx · 15/02/2026 02:31

I thought deep sea diving was "dipsy diving" 😂

Heyehyxx · 15/02/2026 02:39

When I was around 7 I thought my baby was currently really tiny in my stomach and then when I was an adult it would grow 😂

shudawudacuda · 15/02/2026 03:06

When I was young my dad told me it was illegal to beep the car horn on a Sunday. It seemed logical, Sunday is the day of rest. I was 28 when my now husband disillusioned me of this fact. Even now I can’t bring myself to beep the horn on a Sunday, just in case he’s wrong and there happens to be a police car about!

CloseEncountersOfTheLoveKind · 15/02/2026 03:17

JuvenileBigfoot · 14/02/2026 17:11

Outing if my mum or sister are here but remember those really vague sanitary towel ads in the early 90s? Where they just kind of showed a picture of the towel and then a very happy woman swishing about but didn't really say what it was for? (Not even blue liquid!)

Well there was one that showed tbe pad then cut to a woman laughing with her hand on her chest (funnily enough, she's now what i picture when I read "tinkley little laugh). So 4 year old me decided she had something which looked like a pad down her top and was holding it. So I spent the next few days putting a square of kitchen roll down my top, holding it in place and laughing dramatically while throwing my head back.

My parents thought I was bonkers.

Not much in here makes me lol.. but the thought of your parents faces… I’m still smiling now !!!

OonaStubbs · 15/02/2026 04:13

My grandma told me that farting in church was one of the seven deadly sins. I only realised it wasn't true after I watched the movie "Seven" and wondering how someone was going to be killed by farting in such a serious movie. Luckily I never said anything out loud.

SecretFBIAgent · 15/02/2026 05:18

ThatsRoughBuddy · 14/02/2026 16:32

I thought this was how trains went over the Forth Bridge. The first time I saw one go over I was astounded at my stupidity!

(photo incoming)

I love the time and effort you put into this drawing… it’s really made my day 😍😆

Hangerbout · 15/02/2026 06:34

Quicksand!

WalkDontWalk · 15/02/2026 07:11

Flukingflukes · 14/02/2026 21:26

I thought that women became pregnant spontaneously. That’s what Sunday school does for you.

Me too. I thought it was triggered by being in love. I couldn’t understand why there was any problem with an unmarried girl having a baby because that just proved that she and the boy really loved each other.

LakieLady · 15/02/2026 07:45

corlan · 14/02/2026 16:34

I believed that earwigs were so called because they could crawl in your ear and build a nest shaped like a wig. I still have to sleep with my hair covering my ears to prevent this happening.

My cousin told me that they'd get into your ears and burrow into your brain and eat it!

I was terrified of earwigs for years.

scalt · 15/02/2026 07:47

@JuliettaCaeser I too thought foxes were dangerous man-eating animals: it was all those stories like The Gingerbread Man. I was quite disappointed when I saw a real fox, and how small it was.

@TrishM80 As with your roundabout, I remember feeling a similar disappointment about my first school "playground". It didn't have any equipment in it at all: it was just an open space! It had a small patch of grass which we were forbidden to walk on.

@SandyY2K I too thought weird things about closing my eyes: I used to imagine everything around me changing while my eyes were closed, and my imagination would go into overdrive. One time I was blindfolded at school, I wondered why I couldn't see the pattern on the scarf, and I zoned out and forgot what I was supposed to be doing (pointing in the direction of any sound I heard).

midnights92 · 15/02/2026 08:35

SophiaPetrillo1905 · 14/02/2026 16:18

I thought God's name was Peter because at Mass we said "Thanks Peter God" (non-Catholics, the line was Thanks Be To God!)

I know so many people who grew up thinking this too.

TheFutureIs · 15/02/2026 09:13

I thought drink driving meant someone was driving along sipping on an alcoholic drink

Dbank · 15/02/2026 09:25

AnAlpacaForChristmasPleaseSanta · 14/02/2026 17:39

I think it is.
I also thought that because I could see the people on telly then they must be able to see me too. And spent a good long while holding a grudge against the late Terry Wogan because I waved at him once during an episode of his chat show and he never waved back.

Likewise, but it was the newsreader Gordon Honeycombe. I knew they were watching me because they had the shots in the gallery where you could see all the monitors.

EleanorReally · 15/02/2026 09:26

our cat ran away to get married.

EleanorReally · 15/02/2026 09:27

white bread sends dogs mad,
in fact brown bad is worse for their digestion

Jimmyneutronsforehead · 15/02/2026 09:31

This is very outing, so hi Mum!

When I was 5 we went on a caravan holiday with my grandparents and my great grandmother.

We'd just come back from the tiger club, and my great grandmother told me to draw the curtains. I was frantically looking round for a pen and a piece of paper, and she just kept barking "draw the curtains!" at me. I'd never been so panicked in my 5 years of life so I grabbed one of those CD marker pens and drew a pair of curtains on the caravan table. Anything to stop the vicious barking.

When my mum came in she saw I'd drawn all over the table and sent me to bed.

When she came in and asked why I'd done it, I said great grandma shouted at me to draw the curtains she burst out laughing.

It wasn't actually until years later that I learned that draw the curtains meant close the curtains.

sashh · 15/02/2026 09:51

I blame RC schools for this but I couldn't understand why people were upset when someone died because now they would be in heaven.

starrynight009 · 15/02/2026 09:57

That if you drink cola and then eat a polo your stomach will explode.

MelancholyEnchantment · 15/02/2026 10:35

My brother convinced me that people on TV were replaced by robots as the real people had to be stored away so that they could be shown again (I was very little at the time). So when mum was interviewed for a vox pop, I kept screaming "I don't want a mechanical mummy!".

WhatASmashingBlouseYouHaveOn · 15/02/2026 11:09

A classic that I dont think anyone has mentioned. My grandad told me if you're pulling a face, if the wind changes direction it will stay that way. I was terrified of it and thought id spend the rest of my life like that, so it worked!

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