AITAH for Telling My Sister She Can’t Bring Her Untrained Dog to My Wedding?
Weddings are supposed to be joyful occasions, but they can also bring out the worst in family dynamics—especially when pets are involved. Recently, I found myself in a heated argument with my sister over her untrained, hyperactive dog. She insisted on bringing him to my outdoor wedding, and I firmly said no. Now, half my family is calling me unreasonable. So, AITAH for setting boundaries on my big day?
The Wedding Dilemma

My wedding is in three months, and my sister, Lisa, has been ecstatic—not just for me, but because she sees it as the perfect opportunity to show off her new rescue dog, Max. The problem? Max is a high-energy, untrained one-year-old who jumps on people, barks incessantly, and has zero leash manners. When Lisa casually mentioned she’d be bringing him as her “plus one,” I was stunned. Our venue is outdoors, with delicate floral arrangements, a sit-down dinner, and elderly relatives who aren’t exactly dog lovers. I gently explained that Max wasn’t a good fit for the event, but Lisa immediately accused me of being unfair.
Family Takes Sides

Lisa didn’t take my refusal well. She vented to our parents, who surprisingly sided with her, saying I should “make an exception” because Max is “family.” My mom even suggested setting up a separate area for him—but that didn’t solve the issue of him barking during the ceremony or knocking over the cake. My fiancé supports me, but now I’m getting texts from aunts and cousins calling me a bridezilla. Am I really wrong for wanting one day without chaos?
Setting Boundaries

I love Max, but he’s not a service animal or even a well-behaved pet. Lisa hasn’t invested in training him, and expecting him to suddenly behave at a crowded, high-sensory event is unrealistic. I offered compromises—like hiring a pet sitter or letting her bring Max to the rehearsal dinner instead—but she refused. Now, she’s threatening to boycott the wedding altogether. Part of me feels guilty, but another part wonders why her dog’s presence is more important than my comfort on my wedding day.
The Emotional Fallout

The backlash has been exhausting. Relatives keep saying, “It’s just a dog,” but that’s the point—it’s my wedding, not a dog park. Lisa has painted me as the villain, and now family gatherings are tense. My fiancé thinks I should stand my ground, but I hate the drama. Was I too harsh? Should I have just let her bring Max and hoped for the best?
Reddit Weighs In

I posted this dilemma on r/AITAH, and the responses were overwhelmingly in my favor. Most commenters agreed that weddings aren’t the place for untrained pets, especially when the couple isn’t comfortable with it. One user wrote, “Your sister is being entitled. If she cared about your wedding, she’d respect your wishes.” Another pointed out, “If Max ruins your dress or injures a guest, she won’t take responsibility.” The validation helped, but the family tension remains.
Finding a Resolution
After some reflection, I decided to approach Lisa one more time. Instead of focusing on Max’s behavior, I framed it as a safety issue—mentioning the venue’s liability concerns and our elderly guests. Surprisingly, she softened. We agreed she’d leave Max with a trusted sitter, and I’d let her include him in some pre-wedding photos. It’s not a perfect fix, but it’s a compromise. In hindsight, I realize this was never just about the dog—it was about feeling heard. Maybe I wasn’t the AH after all.
What do you think? Was I wrong for saying no to my sister’s dog? Have you faced a similar AITAH situation with family and pets? Share your stories in the comments!