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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

To have let this women know her lights were on

63 replies

gigbroken · 18/12/2025 09:18

I parked up in Tesco park and in the car next to me was a women eating a sandwich but her car headlights were on. When I come back out after doing my shopping she was still there with the lights still on. I assumed she'd forgotten to turn them off and motioned for her to roll down the window and I told her that her lights were on and they might drain her battery.

She responded by telling me to 'f off and mind your own business'. Was I wrong? I just thought I'd want someone to tell me. It's really not that serious

OP posts:
Ddakji · 18/12/2025 09:19

I wouldn’t have said anything but she was unnecessarily rude.

SumatraTa · 18/12/2025 09:21

If I'm eating a sandwich at a Tesco car park or means I don't have my shit together. I wouldn't want to be disturbed either

PegDope · 18/12/2025 09:21

What is wrong with people?????

You were trying to do a nice thing OP. She was incredibly rude.

JudgeBread · 18/12/2025 09:21

If it's not that serious why are you still thinking about it?

You really don't need other people's permission to acknowledge that yes, she was rude. People can be sometimes. Life goes on.

gigbroken · 18/12/2025 09:22

SumatraTa · 18/12/2025 09:21

If I'm eating a sandwich at a Tesco car park or means I don't have my shit together. I wouldn't want to be disturbed either

So you would be happy waiting to RAC/ AA to jump start your car because your batteries dead instead??/

OP posts:
UxmalFan · 18/12/2025 09:22

It's exactly what I would have done. I love helping strangers and being helped by them. But sometimes it isn't appreciated. She was rude. Perhaps she was having a bad day and your comment felt like criticism.

noidea69 · 18/12/2025 09:22

I wouldn't have bothered to be honest.

She was probably someone who just wanted 15 minutes peace.

colddarkdarkcold · 18/12/2025 09:23

Yeah, that was ridiculously rude.

honestly though, I’d think it. I wouldn’t dream of saying it but I’d think it.

SumatraTa · 18/12/2025 09:24

Bold of you to assume I got a membership.

Tinkerbellthefairy · 18/12/2025 09:25

I wouldn’t have said anything. 15 mins is unlikely to flatten a decent battery.

SuePlarr · 18/12/2025 09:26

Merry Christmas OP, I would have thanked you in that situation.

CoatiCutie · 18/12/2025 09:29

Was her car switched on, how old was it? My car has auto lights, I never manually switch them on or off.

I would be pissed off to be disturbed too - if I'm sat in a car park eating, then I obviously need some damn space that I can't get elsewhere

AzureCats · 18/12/2025 09:31

Karma will get her when she forgets and leaves them on overnight. Hopefully on a cold frosty morning so her battery is dead flat and she's in a rush somewhere. 🎻

Isekaied · 18/12/2025 09:34

Completely rude.

In the queue this morning to pay at lidl.

Putting my stuff on the conveyor belt.

Someone behind me tells me my stuff has fallen off.

I thank them and look round to pick it up. But it isn't mine but the lady heads.

I just pick it up and put it back on for her the lady ahead.

I didn't turn round and tell the lady behind me to fuck off and mind her own business because she got it wrong.

Livelaughlurgy · 18/12/2025 09:39

I think that a pp has it right. If you're horsing a sandwich into you in a car in a retail car park in December you're hanging on by a thread. She was rude but it wasn't about you or anything you'd done.

WeirdyBeardyMarrowBabyLady · 18/12/2025 09:44

I think that this may be something that’s moved with the times. I have a self charging hybrid and if I sit with it turned on the lights are on automatically. The engine kicks in sporadically to keep the battery topped up but for long periods it’s silent. I think unless I was sure I wouldn’t say anything these days.

GoodBrew · 18/12/2025 09:45

A woman once tapped on my window in Tesco car park because my engine had been running for a while. I've no idea why she needed to do that, my windows weren't fogged and she could see me through the glass. It's not like I was sleeping and looked dead, I was moving my head around and my eyes were open.

As it happens I was crying my eyes out while my little one slept in the car seat. I had just received some terrible news and my son was such a bad sleeper the only way to soothe him was to drive or sit with the engine on.

I was bloody pissed off with her as she woke my son up and that was the only bit of sleep he had in nearly 24 hours. People need to mind their own fucking business.

stickygotstuck · 18/12/2025 09:48

The woman was beyond rude. And ungrateful.

Also, people don't know how their car lights work. They should bloody learn.

I attend an evening class. It's dark when I get there. There is a decent car park buy it's almost full so it means lost of manouvering.

I'm beyond pissed off at idiotic and /or inconsiderate people who park up (or worse, stop sideways waiting to pick up), leave the lights on all the bloody time, and dazzle you, leaving you unable to park or liable to run someone over because I CANNOT SEE.

I intend to knock on their window next time, and anticipate a similar enraging response to the woman in the OP. I cannot guarantee I'll keep calm.

Anyone with automatic lights, please turn them off when parked. Or don't be surprised if you cause a road rage incident in a car park at night!

EverardDeTroyes · 18/12/2025 09:53

If that is her response to your friendly information, she deserves to have a flat battery. I'd shrug and walk away satisfied in the knowledge that I had been a good Samaritan.

MortXYZ · 18/12/2025 10:22

gigbroken · 18/12/2025 09:22

So you would be happy waiting to RAC/ AA to jump start your car because your batteries dead instead??/

Battery wont go flat you have to have them on all night before the battery would possibly need jump starting even then i've seen cars still start. I wouldn't have said anything because if she's in the car she is well aware that her lights are on.

AppropriateAdult · 18/12/2025 10:26

Why is it so weird to eat a sandwich in a parked car?! She was probably waiting for someone who was shopping. Bit ridiculous to assume this is the sign of somebody ‘hanging by a thread’ Confused

CautiousLurker2 · 18/12/2025 10:32

TBH I’d have minded my own business - my car lights are automatically switched on if the engine is on - which hers likely was if she was using the heater/radio/phone charger, though it may not have been audible if in ‘sleep’ mode (mine does that, too, stopping the engine from running when I am waiting for a period at traffic lights and then it fires up when I accelerate again when they change).

As a result, she probably thought you were being a busybody. You might even have been the 5th person to tap on her window. I used to get it from the busy bodies outside my kids’ schools who thought I had my engine running as the lights were on.

That said, she could have been polite about it. No need to swear at strangers.

But I wouldn’t bother anyone over their car lights again when they are actually sitting in the car.

shellyleppard · 18/12/2025 10:33

I would have said something about the lights too but her response was over the top and rude.

Growlybear83 · 18/12/2025 10:45

i don’t understand the surprise at someone eating in their car! I go regularly go swimming at 10am, then get the food shopping, and am usually really hungry so eat a sandwich or snack in my car, with a cup of coffee, in the car park before driving home. In this weather, I would usually turn the heating in my car on, and have lights which automatically turn on as soon as the key is turned in the ignition. I would get really irritated if someone started knocking on my window to tell me something as obvious as my lights were on.

Taweofterror · 18/12/2025 10:48

There was no need for such a rude response but it wouldn't occur to me to tell someone who is still actually in their car that their lights are on. She surely knew this already. Fair enough if you are aware of someone who has left their vehicle with their lights on but it seems an odd thing to tell someone who is sat in their car.