"He didn't come to school for three days and I was scared that I killed him. To this day, no one knows that I did it."

*As well as a few more from the original Reddit thread, because why not?

"This only came out when she turned 18 and found out who her dad was, prior to that no one knew, and my dad and her mom had kept it a secret for 18 years. Completely fucked with me for quite a while that I'd had a crush on my half sister for a number of years."

"I went there and knew practically no one — my grandfather has 11 sisters and two brothers so there were many unfamiliar faces. Except for one. It was my internet friend. We pretended to be meeting for the first time. Obviously we kept quiet about it while trying to figure out how we were related. He's essentially my grandfather's sister's first son. Not only that, but he's married with three kids. He told me he was single. After that awkward encounter we distanced ourselves from each other. ... I had sex with my first cousin once removed, and a married man."

"My only hope is that no one else that's actually blood related decides to buy a test because that is an awkward convo I'm not ready for."

"Since they were so into each other, they didn't hear me coming up until my dog started making noise. For several seconds we all looked at each other saying nothing until the couple took off running in the direction of their respective backyards. We all knew each other, but I wasn't friends with the two nor their spouses. Long story short, I kept my mouth shut about what I saw and neither of the lovebirds ever said anything to me."

"It was a small town so everyone knew and he was quickly arrested. She had been shot at least twice. I asked if anyone else was hurt last night but she told me that it was just the woman who was killed. The town was close to the city and they were strict about their gun control. So I should be happy that I know about what caused those two loud shots, right? Well, I think a lot about that first shot. The man only had a shotgun and he was the only one reported shooting that night. The first shot to my knowledge was more likely from an handgun. Who was that first person? Did the wife conceal her own gun and shot in self defense? Was it a drunk guy like I initially thought it was? Did someone else die that night but no one else knew about? ... I’m not sure I want to know who fired that first shot."

"Her husband was a compete maniac who wanted to be a cop but had to settle for being a security guard. He suspected it and hated that she spent more time with me than him. The even more messed up part is we acted like mother/daughter around other people. When things really started derailing, she gave me an ultimatum sitting in her car in the school parking lot. We could be mother/daughter or lovers but the latter would not last. The whole situation was fucked up beyond all repair and there were times we were both clearly in danger because her husband became unhinged. I was 17."

"He put her in a sink full of water and literally dragged me in there, grabbed my hand and forced me to hold this mouse underwater. I was struggling and crying the whole time to take my hand away. This fucking traumatized me. And what's worse...He then took the rest of the baby mice that had lived, and he fed them to this fucking fish he had. ... I've never told anyone that story. I'm too ashamed. I know I was a kid and I'm clear that he forced me, but it still doesn't take the pain and shame away."

"She cussed him out and would badmouth him any chance she could. I was too scared to tell her and she still doesn’t know."

"Next day, we saw several of the girls mourning their clubhouse. ... We were too afraid of telling anyone, so we kept it a secret and were never caught."

"To this day, I keep telling myself it was costume jewelry to make myself feel better, but I honestly don't know. I'm sorry, mom."

"I used my boxers to clean up. Showered and went home."

Submissions have been edited for length/clarity.