AITAH for refusing to babysit again after sis didn’t pick her kid up on time?

In a heart-wrenching ordeal, an 18-year-old girl found herself thrust into a nightmare when she agreed to babysit her sister’s two young children. What began as a reluctant favor quickly spiraled into four days of terror and uncertainty, with no word from her sister, no sign of help, and a growing fear that something tragic had befallen the family she was entrusted to protect.

Her sister’s carefree disregard for her promises shattered the fragile sense of security, leaving the young babysitter isolated and overwhelmed by panic. When the truth finally emerged, it was a cruel betrayal—a selfish party that ignored the chaos left behind, dismissing the young girl’s anguish with cold commands to be silent. Now, with a heavy heart and shattered trust, she escapes the suffocating nightmare, leaving behind a fractured family and a story of neglected responsibility.

AITAH for refusing to babysit again after sis didn't pick her kid up on time?

At the beginning of this week I(18F) babysat my sister’s (26) two kids (2 and newborn). She is a single mother and went out to meet with friends to have lunch. She promised me to be back after few hours.

I didn’t want to babysit since it would cost me precious ecam prep time and I was anxious because of the newborn and my zero experience but he begged and cried so much I did it.

She didn’t show up until yesterday in the evening, and I wasn’t able to reach her during the four days and called even hospitals if they found a female body or what because I seriously thought something major happened.

Turns out she was partying and lost track of time and I should just stay calm and don’t cause so much drama because everything is good and nothing bad happened to the kids. She didn’t see the fact that I was shaking and had panic attacks.

After she told me to shut the ef up because she tried to sleep I just packed my stuff and now I’m in the train going to my place.

When she left she called me, and said how dare I leave because I promised to take care of the 2 year old when she goes to the hospital for the appointment on Saturday morning. And that I promised that before she partied so no matter what I had to keep my word.

I feel a little guilty but also I’m afraid she will continue like that and I felt I need to protect myself.

My mom and her think I’m the AH. My mum partly understands but said I should have been patient one more day until after the appointment.

Here’s how people reacted:

FoodLuvN8trSunSeeker

That’s WILD & SCARY. IM SORRY. While I sympathize with single parents or burnt out parents, you’re def NTA A newborn is especially vulnerable. For an 18yo (barely an adult) to wrangle 24/7 care seems like magic. That baby was up every 2ish hours for a bottle or formula or? Inexperienced you put 2 kids to bed & fed them each day while solo?!?!
I’m in shock.
Yes, moms need to recharge & to get adult outings….but in a responsible way. I didn’t trust hardly anyone w my nursing NB precious baby!
That baby could be crying all night w a stranger. Plus, if you wipe the #2 mess incorrectly they can get infections, etc.
It’s HARD watching a NB & toddler. Your mom can volunteer instead of pressuring you.
You gotta focus on school & your life.
Helping is taking the toddler to a park….not 24/7/4 care for a reckless & uncaring mom.
Newborns are fragile! So lucky there wasn’t a tragedy.
NTA
TheSupremeAdmiral

This story is ridiculous. You have no experience with new borns but you took care of one for several DAYS while your sister was missing? What did the baby eat? Did you have several days worth of formula? How did you go shopping while babysitting two extremely young children? Were you given car seats for this occasion too? 

Again she was gone for a DAYS when she was supposed to be gone for hours? That’s a little mistake for a computer to make but that’s bugfuck insanity for a human. 

How did your mother respond when you told her you had her granddaughter and that her other daughter was missing? How did she respond after the the first day she was missing? The second? At what point did you file police reports? What did the police say when your sister turned up? 

You’re an asshole for this stupid fake fucking story.

Comfortable-Shift-17

NTA. The fact she’s a single mom with a newborn should have told you that she’s irresponsible and not to be trusted and before anyone comes at me with “the BD might be the irresponsible one” well yeah, and she chose to get pregnant to him either before she knew him long enough to know he’s irresponsible or when she knew he was irresponsible. Either way she went halves in a baby she’s going to be bringing up alone along with the previous child and it’s our food stamps, section 8 and welfare checks that will be paying for it.
She was missing and unable to be found while that baby could have been in hospital or worse while an 18 yo was responsible for them.
BullyBreed_RescueMom

She didn’t keep her word about a few hours. Plus you took care of them for 96 hours straight… so asking a sibling to babysit should only be for 3 hours once a month at most since youbhave school. Plus doesn’tsound like she paid you or gave you $$ to feed kids for 4 days… tell she used her time for 2. 6 years … Check back then …you might be over the anger, fear, panic, worry, etc she put you through.

Also why your mom come and take them? Their mother is her daughter so she should be responsible not you. Minute it exceeded 5 hours Grandma should take them.

Bearlythegrizzlybear

NTA. Don’t come back and you should say to your sister that your mother agreed to come and do it. 

Your family need to understand that you could have called social services or police (after one day I would have). 
Even if she was just partying, for her own safety you should have done it, because you didn’t know where she was. 
Don’t accept to be put in this situation again with anyone. 

Please concentrate in your exam prep and ignore both of them. Your mother just doesn’t want to do it herself. 

milletdrop750

NTA. She abandoned her children for FOUR DAYS without telling anyone where she was, thats not just irresponsible, that’s borderline neglect. You were terrified something happened to her, had panic attacks, and still took care of her kids with zero experience. The fact she came back and told you to shut up instead of apologizing says everything. You don’t owe her anything, and setting boundaries doesn’t make you the villain, it makes you the only adult in the room.
squish5636

NTA.

Dont watch them again and dont feel bad – if your mother has an issue with it **she** can watch them next time. Nothing stopping your sister taking both kids to the appointment

She abandoned her children, including a NEWBORN for 4 days and was unable to be contacted.

Thats not “losing track of time” – thats straight up neglectful and should be reported.

JustShadows

Please stop feeling guilty, you did nothing wrong, your sister is very lucky that you didn’t call the authorities when she effectively abandoned her children to have a party and relive her youth. I get that it is hard being a mother, but her children are not your responsibility, and she can’t just run off with her friends whenever she feels like it
TheCy_Guy

If you ever agree to watch them again you will find yourself in trouble one way or another because of her behavior not least failing to bring in CS. Stay well away from her and your enabling mother and if they raise the topic tell them your refusal is not a conversation. Stay strong and good luck with your exams
yourusualcap27

NTA. ask your mom how would she feel if you failed your exams because of your sister irresponsible behavior,?
also what if any of the kids had an emergency during those 4 days and she didn’t answer the phone?
never babysit again for your entitled sister, not your circus, not your monkeys..
ZookeepergameNo7151

NTA

At all.

She got you to watch them for a couple hours to go lunching, then decided to just extend that into four days of partying.

And she had the nerve to attack you??

Your mom is also TA for agreeing with her, how on earth does she not see a problem with what she did

Fair_Text1410

NTA. Don’t babysit no more. Those kids are not your responsibility. She should get their fathers to “babysit” the kids. You had no role in creating them so it is not your responsibility.

You have a life that you need to live. Good luck in school and best of luck.

Accomplished-Emu-591

NTA. A four day bender is not “everything is good.” Ignoring your need to prep for exams is pretty damn selfish. She is a user and your mother is an enabler. You will be far better off to be NC with both and just concentrate on your schooling.
Otherwise-Plane8282

What the fuck was she doing? How can you lose track of four days? Especially when they have small children. I would of called the police and CPS on her ass if she didn’t turn up after few hours of the agreed time and report her missing
Suchafatfatcat

NTA and I would refuse to babysit in the future. And, honestly, you should have called CPS when she didn’t turn up after 24 hours. With her lack of responsibility, I fully expect she will be birthing baby #3 before too much longer.
2much4meeeeee

NTA or even close. She said hours and was unreachable for DAYS all while you’re trying to study?! A responsible parent doesn’t do that to anyone. Maybe she should have pulled that stunt with your mom who thinks it’s okay.
burlesque_nurse

Sound like some golden child bullshit. You need to reevaluate your relationship with your sister as well as your mom.

Your mom should be livid at her for abandoning her children for FOUR DAYS

OpheliasKinks

Is that not like abandonment?? NTA I’d be calling cps honestly. Next time she wants to go party but doesn’t have someone to watch the kids she unfortunately might just leave them home alone.
wishingforarainyday

NTA but your sister should be reported for abandoning her kids. She’s likely got a drug or drinking problem and her kids need to be protected. Your sister and mom are selfish AHs.

Updateme

PuzzleheadedTap4484

She’s lucky you didn’t call the police or CPS for child abandonment. If mom is upset then I guess she volunteered to be the next babysitter. Your sister is an irresponsible parent. NTA.
Suspicious-Donkey16

NTA and how does your mom think this is ok?

If you babysit for her again expect this to happen.
She’s a mother and needs to be taking care of her children, not partying for days

Lady_Fel001

She knew exactly what she was doing and this was planned. You don’t leave an infant for four days and not check in.

Report her to child services, and stand your ground. NTA

Own_Cap_9781

NTA for being angry at her, YTA for not calling to police to at least report her for negligence. “She was too busy doing cocaine, forgot her kids”
Secret_Double_9239

NTA you were doing her a favour and she was rude, therefore she doesn’t get any favours from you until she understands how favours work.
FalconAlternative282

Sorry what??? Did you not think to report her missing?

Obviously NTA. Your sister has serious problems and those kids are in danger!

STTLPW12345

NTA- that’s abandonment and I would have called the police. She is lucky to have you and don’t feel bad for leaving.
lollilettie

NTA. She lied, disappeared for days, and disrespected you. You have every right to say no and protect yourself.
Zestyclose-Height-36

NTA. Those are her kids. Do not ever agree to watch them again. Your mom can watch them if she thinks it easy.
Odd-Chart8250

Partying for days? Sounds like a substance abuse issue. You may want to confront her on that too.
Historical-Hall-2246

4 days. Wow. You’re way too forgiving. I wouldnt have made it past the first half-day.
BlueFungus458

If she was out partying they’ll be another baby for you to babysit in 9 months time!
Strong_Storm_2167

NTA but you should have called the police and reported her missing.
RWAdvice

NTA you should have called the police on her for child abandonment.
Nearby-Possession204

NTA – a few hours, sure, it happens… but days later??? No way.
South_Hedgehog_7564

She has a newborn baby but lost track of time for four days?
Cosmicshimmer

She literally abandoned her children. NTA. A newborn?! wtf??
Quiet-Hamster6509

” Dont push your luck. Next time I’ll report it to CPS. “
Dealerzchoice

Should’ve called the cops and reported her missing
VillageFeeling8616

Nta I’d have reported her to child services

Conclusion

The original poster (OP) is facing a significant conflict between their sense of responsibility toward their sister and the urgent need for self-preservation following four days of extreme stress and abandonment. The sister’s actions—failing to return for four days, ignoring contact, and then dismissing the OP’s panic attacks—created a situation where the OP felt trapped by an initial promise while enduring severe emotional distress.

Given the extreme breach of trust and the apparent disregard for the OP’s well-being, is the OP justified in prioritizing their own mental and physical safety by leaving, even if it means breaking a secondary commitment regarding a future medical appointment?

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