Not me, but I had a friend with a brother who was a year younger, and when they got in a huge fight, he told him he was adopted.

I’m not sure why a parent would let a kid make it to 16 and hide that type of secret.

Side note, I have an aunt that I didn’t know was adopted until I was 30. Looks just like her sisters, and I never asked until she mentioned it as she felt less than her sister.

I can’t remember what it was specifically, but friend basically ruined a major plot point in Witcher 3 for me fully knowing I was a good ways out from discovering it on my own. As a kneejerk reaction and knowing he was about 20 or 30 hours into Fallout 4, I told him who runs the Institute and what relation that individual has to the protagonist.

He was angrier than I was because I had assumed Witcher 3 turned out the way he revealed, but my spoiler absolutely blindsided him. He never ruined anything for me again.

What happens to Gus Fring on Breaking Bad. There had been all sorts of fake leaks and photoshops going around 4chan and Digg and Reddit and I sent one to my buddy, turns out it was the only real one. Whoops.

I guess this is a good a time as any to ask how spoiler tags work on Lemmy.

Also, do spoiler tags also work in Kbin? Because all the text in this thread is completely visible to me and I’m not sure if it’s supposed to be.

I accidentally spoiled Dumbledore’s death for a college roommate (she was a late adopter and it was probably 5+ years since the book came out)

I accidentally spoiled the identity of the Half-Blood Prince. It had been a very long time since I’d read the Harry Potter books, and I didn’t really remember movies 6, 7, and 8, so I forgot that it was even a mystery lol. But at least I didn’t spoil the part where Hagrid kills Malfoy and feeds his bitch-ass to Fluffy. His father heard about that, alright.

There was a class I took in college where we would read a book and discuss it at length. The problem (for me) was that we would read an assigned part, and discuss that part, each week. I, however, read the whole book almost immediately and tried to skim relevant sections prior to class. This caught up to me when we were talking about something, and I mentioned an event that would happen very soon to a main character, but hadn’t happened yet. It was an incredibly important event. I really regretted it and the teacher’s face was very mixed.

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I was at a bar and a girl was flirting with dude with a big handlebar mustache. She left to go to the bathroom and the guy said he was gonna ask her if she knows what a mustache ride was. Well she comes back and asks what’s going on. I blurt out “he wants to know if you know what a mustache ride is”. He was pissed I spoiled his joke.

I have accidentally spoiled more video game plot points in live streams than I would like so I have learned to keep my mouth shut. It isnt worth the risk of spoiling stuff the streamer may or may not have seen just to strike up conversation in the chat.

Not me personally, but when I was hanging with a couple of friends we talked movies with good twists and of course classic The Sixth Sense came up. One of my friends says he hasn’t seen it, yet. So of course we recommend it to him and don’t say anything about the twist. Unfortunately another friend was just coming back from the toilet and hadn’t heard that someone hasn’t seen the movie, yet. Only heard us praising the Sixth Sense, so comes back and directly goes:

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It’s probably not as bad as some of the comments I’m reading here, but it was about Demon Salyer. I met my wife’s little cousin (she is 12yo) about a month ago, and she was talking about anime (Demon Slayer, in this case) and she asked me who my favorite character was.

I had finished the manga, so I told her that I didn’t have any because none of them really spoke to me and asked her what was her favorite. She said it was Shinobu because it was “her comfort character” (I had no clue what that meant at that moment), and not having thought about the fact that not everyone read the manga, I immediately said that:

I realized my fuck up when she started just tearing up, didn’t know what to do so I said I was really sorry and left.

I wasn’t really following nor aware this then popular series. It was shown on a cable channel that we were subscribed to through a cable subscription. I was used to having reruns shown most of the time, and I’ve got pretty much no concept of following an ongoing series on cable TV. So I was pretty surprised when I spoiled a group of friends to a climactic scene to the Game of Thrones S5.

I was surprised at everyone else’s shocked reaction. One of them had the good sense to ask me when I saw the scene, and when I answered “yesterday afternoon, why?” everyone’s mood shifted from shocked and angry to feeling sorry for me, but still annoyed nevertheless. This same person then explained to me why I’ve just spoiled the entire group.

Turned out that without knowing it, I watched a climactic scene of the then latest episode of that series. That I watched it on the early afternoon here locally was due to it being premiered at the same time as it was shown in the US. I apologetically explained that I was just shocked to see such a scene, and thought I’d bring it up.

So I had to do a company speech and to live things up I mixed in some famous scenes from wildly popular old movies. And that’s how I found out that in 2016 among the colleagues in an IT company, one of them had no idea about a certain character from an 11 (is that 11 now?) movies space saga was closely related to the younger main character.