AITA for telling my cousin about the lightbulb mouth fact?

Picture a cozy Friday night, nachos piled high, and two cousins swapping stories under the glow of a living room lamp. The vibe is chill until a quirky fact about fitting a lightbulb in your mouth sparks unexpected chaos. For one 19-year-old woman, what started as a fun tidbit turned into a family feud when her 22-year-old cousin landed in the ER, a lightbulb stuck in his jaw. Now, with her cousin fuming and her aunt pointing fingers, she’s left wondering if she’s to blame for his dim-witted decision.

The internet’s favorite court of public opinion, Reddit’s AITA, lit up with reactions to this bizarre tale. Was sharing the lightbulb fact reckless, or is her cousin’s ER trip his own glowing mistake? Readers can’t help but cringe and chuckle, drawn into a story that’s equal parts absurd and relatable, questioning where responsibility truly lies.

‘AITA for telling my cousin about the lightbulb mouth fact?’

Throwaway because I know my cousin uses Reddit, and I'd rather not have him finding my main account. So I (19F) and my cousin (22M) were hanging out last Friday. We were just chatting away while eating some nachos. I bring up how you can fit a lightbulb into your mouth, but you can't take it out. He just says huh and we continue talking.

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Well, I guess he didn't believe me because he tried it Tuesday night. From what I could gather from his story, he started yelling and his mother (my aunt, F64) came upstairs to check on him. When she saw that there wasn't a way to get it out, she took him to the ER. I'm not sure how, but they removed it without hurting him.

He called me up yesterday, and he was pissed. He said if I didn't say anything, then he wouldn't have tried it. I thought that was total BS and started arguing back that he made a stupid decision and that wasn't on me. Well, my aunt was in the same room, and he gave her the phone to talk to me. She explained that it might have been his decision, but I still opened the door for it to happen.

She compared it to someone leaving a d**g on the counter, and how it's both the person who laid the d**g down and the person who used it. The analogy made sense, and I feel really guilty now. However, I'm still torn on whether I'm the a**hole or not. I feel like I'm just being stubborn, and I'm not really sure what to think. Any judgement would be greatly appreciated.

This lightbulb fiasco shines a light on personal responsibility and the quirks of human curiosity. As the cousin’s ER trip proves, a simple fact can ignite impulsive actions, but who’s really at fault? Dr. John Duffy, a clinical psychologist specializing in family dynamics, notes, “Young adults often test boundaries to assert independence, sometimes overlooking consequences” (Psychology Today). Here, the cousin’s choice to shove a lightbulb in his mouth reflects a classic case of curiosity outpacing caution.

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The OP shared a fact, not a dare, yet her aunt’s analogy about leaving drugs out suggests shared blame. This comparison falters—drugs carry inherent danger, while a lightbulb fact is harmless trivia. The cousin, at 22, has the agency to weigh risks. His decision to act, not the OP’s words, led to the hospital trip.

This situation taps into a broader issue: how much responsibility do we bear for others’ actions? A 2021 study from the Journal of Personality and Social Psychology found that adults often overestimate their influence over others’ choices (APA). The OP’s guilt stems from this, but she didn’t force the lightbulb into her cousin’s mouth. He chose to test the theory.

For the OP, a sincere apology could smooth family tensions, acknowledging her cousin’s embarrassment without accepting full blame. Moving forward, she might share quirky facts with a playful disclaimer: “Don’t try this at home!” This keeps the fun alive while nudging others toward common sense.

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Take a look at the comments from fellow users:

The Reddit crew didn’t hold back, serving up a mix of eye-rolls and belly laughs for this glowing misadventure. Here’s the unfiltered scoop from the crowd:

HoneyLimeFrenchFries − NTA your cousin is 22 not 2 and needs to take responsibility for his actions. I’m reading this right now does that mean I can blame you if I want to stick a lightbulb in my mouth? Your cousin needs to grow up.

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spindacinda − NTA. That's the dumbest analogy I've ever heard. You leave drugs on the counter and someone takes it, it's still 100% their fault. If they were a child it'd be different but we're talking about a 22yo. He needs to grow up. You didn't force him to do the stupid thing, you just mentioned a cool fact. If you had neglected to mention an inability to get it back out you would've been, but as you didn't, this is all him.

chlorenchyma − NTA. It's very surprising your cousin has survived this long.

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Professional-Bee-784 − LMAOOOOO NTA. your cousin is exactly why Darwin had his theory.

rennmismygirl − Nta. Tell him that using sandpaper on his windshield is a great way to get frost off in the winter.

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panicattackcity91 − NTA sorry but this post made me laugh hard… he’s a grown ass man, I was half expecting you to tell me it was a cousin under 10. Don’t feel bad just because your cousins an i**ot and his mum thinks the sun shines out his arse.

Next time it’s brought up say “if I told you it’s impossible to survive jumping out an aeroplane at 1000 m in the air without a parachute, would you jump out a plane to try and prove me wrong?” He’ll likely try to make out it’s not the same but the principle is and that’ll be why he’ll say that

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ProudBoomer − NTA. Some people learn from hearing a story. Some people learn from seeing it in person. Then there's the third type like your cousin that would be stupid enough to have to pee on the electric fence for themselves.

Salt22a − NTA. If someone leaves drugs on the counter, the other person should have enough self control to not use them. He’s a grown man who somehow thought it would be a good idea to stick a lightbulb in his mouth. Don’t let them blame his stupid actions on you.

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FumiPlays − Regardless of whether this post is true, you actually can get the bulb out if you don't freak out and simply relax your jaw muscles.

KXNG_RAGNAR − He is a grown ass man. The fact he is mad just goes to show how immature he is....the fact ur aunt took the phone and talked to you make it sound like it ain't his fault for being immature. If ur cousin was like 10 I would say u are the a**hole. But a 22 year old dude? Gtfoh him and his mom are the assholes.

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These Redditors brought the heat, with some cheering the OP’s innocence and others roasting her cousin’s bright idea. But do their quips capture the full picture, or are they just fueling the fire?

This lightbulb saga is a reminder that even innocent facts can spark unexpected chaos. The OP’s stuck between guilt and defiance, while her cousin’s nursing a bruised ego and a hospital bill. It’s a quirky lesson in personal responsibility and the fine line between sharing knowledge and sparking folly. What would you do if a casual comment led to a family fiasco? Share your thoughts and experiences below!

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