Disrespectful houseguests keep smuggling dairy into sister-in-law's allergy-safe home, forcing homeowner to demand TSA-style baggage checks just to stay out of the ER: ‘I don't trust her in our house. will go through her bags when she comes to our place’

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Etai Eshet • Editor
Apr 21, 2025 6:00 AM EDT

There's a very simple agreement when you're invited to stay in someone's home: you play by their rules, whether it's taking your shoes off at the door or pretending to like their collection of porcelain frog figurines. You don't have to agree with the house rules, but you do have to respect them, especially when those boundaries aren't about feng shui or personal preference, but about keeping your host from making a surprise cameo in a medical drama.

Allergy etiquette in someone's home is where safety intersects with trust, and trust sometimes packs a block of brie in its overnight bag. Our delicate hero here isn't picky, isn't fussy, isn't even a lactose-intolerant killjoy. This is full-throttle, EpiPen-on-standby, bring dairy in, and I might take it with me to the afterlife territory. 

Now, most in-laws respond to this setup with the appropriate concern. No one wants their visits punctuated by the sweet sound of ambulance sirens. But not everyone can resist the siren song of dairy, especially BIL's girlfriend, whose relationship with milk is apparently more intimate than her relationship with common sense.

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  • If respecting a life-threatening allergy means playing TSA at your own front door, so be it. Some people just need a gentle reminder that privacy ends where the peanut butter cup starts to threaten a pulse. Air travelers deal with shoes-off security for less, so let’s not act like inspecting a suitcase for string cheese is a human rights violation.

  • "AITA for demanding to go through my BIL and his GF's bags if they are staying with us"

    "She can come and stay at our place, but we will look through her bags"
    via Jacob Lund

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

  • I have a pretty severe dairy allergy; I break out in hives, struggle to breathe, and have to carry two epipens with me everywhere. If I get any dairy in my system, I'll end up in the ER.
    via InvestigatorHour2911
  • My In-Laws know this and have been extremely accommodating since my fiancé and I started dating five years ago. When we moved in together two years ago,
    via InvestigatorHour2911

  • Strike one: a little experimental home cooking with hidden dairy. Result: one trip to the ER and plenty of apologies. Strike two: a covert milkshake mission, candy-bar wrappers in the trash, and a thoroughly ruined mood, not to mention a massive family blowout. The result: banishment, at least until trust could be rebuilt or dairy was conclusively out of her system.

  • Cheezburger Image 10496076288
    via pixelshot

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

  • we set strict rules for our home because of my allergy. The big one is that no one is allowed to bring anything that contains dairy into our house ever, no matter what.
    via InvestigatorHour2911
  • My BIL started dating his girlfriend a year and a half ago. They came to visit us together for the first time a year ago, my fiancé made sure my BIL
    via InvestigatorHour2911
  • explained my allergy to his girlfriend, and our no-dairy rule. Two days into their stay, she bought dairy products and cooked lunch for herself when we weren't home. I ended up in the ER because of cross-
    via InvestigatorHour2911

  • New security measures

    ITS: AVISO DO NOTICE
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  • contamination. She apologized and explained she hadn't understood how serious my allergy was. We managed to put the situation behind us since both my fiancé and I currently have and want to keep a good relationship with my BIL.
    via InvestigatorHour2911
  • The two of them came for a second visit 9 months ago. We had a video call with BIL and his girlfriend before the trip to make sure she understood the severity of my allergy and how serious we are about the no-dairy rule.
    via InvestigatorHour2911
  • During their second trip, I was taking out the trash and found candybar wrappers and an empty milkshake container in the guest room trash (the room she was staying in). Even after she saw
    via InvestigatorHour2911
  • how serious my allergy is, and how I ended up in the ER, she still brought dairy into our house. I confronted her when they got back. She and BIL had a huge
    via InvestigatorHour2911
  • fight. BIL went through her stuff and threw out everything she had with dairy, we kicked out his girlfriend. (BIL stayed for the rest of the planned trip)
    via InvestigatorHour2911
  • BIL and his girlfriend worked out the relationship after the trip and are still together. Since their second trip, BIL has come alone since I don't trust his girlfriend in our house. Well, BIL is planning a
    via InvestigatorHour2911
  • new trip to visit us, and his girlfriend wants to come too. At first, we just said no, we don't trust her. But since we know this is important to BIL, we came up with what we believe is a good compromise. She can come and
    via InvestigatorHour2911
  • stay at our place, but we will look through her bags, everytime she comes back to our place. And if she dosent accept that she can stay at a hotel or stay home
    via InvestigatorHour2911
  • Now i am being called an Ah le for treating her like a criminal and that checking her bag is an invasion of privacy. So AITA for demanding to go through her bag if she is staying at my house?
    via InvestigatorHour2911
  • frysatsun She's broke your trust twice and she's calling you an ah le? She's the ah le.
    via frysatsun
  • SquirrelBowl Dude why are you letting her back in? You trying to di ? Of course you're NTA! Ffs
    via SquirrelBowl
  • PleaseCoffee Me NTA, she's had 2 strikes, and she still couldn't comprehend what she was doing was wrong. If she continues to push back just tell her, "ok, find somewhere else to stay, I've been down
    via PleaseCoffeeMe
  • this path with you twice before, and ended up in the ER. You have intentionally endangered me twice, I'm not willing to risk a third occurrence."
    via PleaseCoffeeMe
  • trythisoutchiki NTA but I would just tell her to stay elsewhere. The medical bills aren't worth this mess and she's proven twice she doesn't listen.
    via trythisoutchiki
  • Spicy Traveler94 NTA, but I think it's wild you'd ever let her in your house again and that you're willing to act like the TSA. She almost k lled you. She and BIL can stay nearby and you can meet in neutral places.
    via Spicy_Traveler94
  • grayblue_grrl She wants to call you names because she betrayed your trust TWICE? She's not allowed in your house because of THAT. AND the attempted murder. Why is he with her? What is wrong with him? NTA
    via grayblue_grrl

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