'She kept stealing my skincare': Entitled sister-in-law uses skin products without permission, ends up with a blotchy face

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Ben Weiss • Writer and Editor
Jun 19, 2025 8:00 AM EDT

Whatever happened to not touching other people's personal items without asking? We have gotten to a place as a culture where privacy is a difficult phenomenon to uphold. We feel that reality on social media especially, but it also pertains to our physical reality as well. It's as if people either forgot or never learned how to mind their own business and leave others alone. 

In this instance, we have a young woman whose sister-in-law was staying with her for a visit that was brief but impactful…and not in a good way. The entitled sister-in-law started to use the author's skin products without her approval. The author started to notice this but chose not to say anything. Then, it got worse, and she even started to notice that some of her products were running out. So, she did what any other mature individual who has come across stories of petty revenge on the internet would do. She swapped one serum bottle for a strong, prescribed cream used for the author's keratosis. Let's just say that the results were not smooth for the sister-in-law!

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    Cheezburger Image 10518006528
    via Kalos Skincare

    The image does not depict the actual subjects of the story. Subjects are models.

  • Apparently, nothing screams petty revenge like blotchy skin. The sister-in-law wasn't even able to defend herself or deny that she used an item that wasn't hers. The evidence, after all, was right there on her face! There was no way she was getting out of this one, and apparently her silky smooth skin would inevitably bear the consequences as well.

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    My sister in law was staying with us for a bit and decided my bathroom was her personal Sephora. Every morning, I'd notice my skincare products getting lighter, but she'd always deny using them like I'm blind
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    and dumb. So I swapped out the label on a nearly serum bottle with a similar looking one I use for my keratosis, super strong, smells fine, burns like h l if misused.
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    Next morning, she's blotchy, orange tinted, and low key panicking in the mirror. I hit her with the innocent "oh no, did you try something new?", she said "what? No! I mean... I might've
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    used that a little bottle, but I thought it was like... for everyone?" *nervous laugh, and "ohh... yeah no. That's prescription. Definitely not a for
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    everyone kinda thing. Maybe next time just ask?" I says. Then I walked out and let her sit with that.
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    After that, she never touched my stuff again and suddenly respects the concept of personal property.
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    Cheezburger Image 10518006784
    via Kalos Skincare

    The image does not depict the actual subjects of the story. Subjects are models.

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    . Spikerdemon_1 • 14h ago She now knows that not everything is for everyone, I am glad she learned though.
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    Imguran ⚫ 14h ago Skincareful.
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    Wiley_Coyote_20... 14h ago • Those types don't change their ways. I don't believe she respects personal property NOW - she just learned not to trust your labelled products! :)
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    delulu4drama • 14h ago Blotchy brat
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    JenisSalty 13h ago My husband and I used to go on holidays with my parents. One morning before we went out for the day, my husband saw a tube on the table and thinking that it was sunscreen he grabbed it.
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    "My mum asked do you know what that is?" "Yes Lorna" my husband said condescendingly. So my mum let him slather it on his face and arms.
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    Over the course of the day, my husband got more and more orange as the bronzer developed, he couldn't figure out why we kept laughing at him. It was hilarious.
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    Maleficentendscu... 14h ago . Perfectly Petty ☑
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    thatgirlwiththathi... • 12h ago One time I was traveling with a friend and her family along with her 15 year old sister. The 3 of us were sharing a bathroom and left my toiletry bag on the counter along with theirs. I noticed
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    when I went to brush my teeth and do my skincare the first night that things were rearranged from how I had them so I asked if anyone borrowed anything
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    and they both denied going into my bag. In the morning my friend's little sister's face was obviously irritated and we asked if she was okay,
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    she kept telling us she was fine. A few days into the trip her skin was red and flaky and she was so upset about it she was crying and started
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    blaming me. Apparently she saw people using tretinoin on TikTok and wanted to try mine. This girl was using her benzoyl peroxide face wash and then putting MY 0.1%
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    Rx tretinoin on WET SKIN and then using her regular thick moisturizer on top. And she wasn't wearing sunscreen. She told me to fix it and I told her not to take things that aren't hers,
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    especially if it's someone else's prescription. Thankfully her parents weren't upset with me since she took it without asking. I
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    recommended they talk to a dermatologist since I had never f ed up my skin like that before.
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Tags

petty-revenge-reddit skin petty revenge petty sister in law entitled people karma skincare entitled entitled people
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