One time (this was roughly a decade ago) I was at a lock-in at my high school for One Act Play Theatre, and I had brought along Rock Band. Everything was going fine, this girl asked to play and I said sure, and then we were all deciding what song to play and I suggested Creep and she got very, very upset and no longer wanted to play and left. We all kinda shrugged and picked a different song and kept playing.
A few hours later, she called her parents and had them pick her up, and when I walked by the gym, I overheard her telling someone that she thought I was "going to rape her or something" if she stayed and that that was why she was leaving. This is someone I had never spoken to in my life. She quit the play and everything. I have no idea what I did and have always felt some kind of guilt over this even though I can't think of a single thing I may have done other than wanting to play Creep in Rock Band that might have given her that idea. It legitimately messed with my head for a long time and made me feel ultra self-conscious about everything I did because you never know how someone is going to view something. I've always wished I could reach out and ask what the heck that was about, just to get some closure on it and understand where, if anywhere, I went wrong, but I can't imagine any universe where it would go well, so I don't. Just one of those great life mysteries, I guess.
There was also a time when I was 8 or so where some guy had said something to a girl that made her cry, and then later he was talking to me and I pointed at her and said, "Look what you did". The teacher called me up and asked me why I pointed at her, and for whatever reason I decided that there was no way she was going to believe what happened because it sounded like something I'd say to get out of being in trouble, so I just said that I had been making fun of her. I had to sit out at recess and everything, and did so without protest.
As a final one, my mom has been known to conversationally accuse me and other people of having malicious intent all the time. Examples include things like randomly and aggressively telling me "don't you steal money from the credit card" (I have never done this) or "I know you aren't planning to come to the family gathering because you hate us" (I was in the middle of asking when it was so that I could plan around it) and so on. It always feels like it's out of left field and more like she's casually accusing me of random negative things that I think she, if anyone, would be more likely to do, like it feels like strong projection. It has caused a lot of upsets especially when in front of other people, where she'll just pick someone and start trying to dig at them for no reason. I mention it mostly because it has given people a bad first impression of me on several occasions, as it probably gives them the assumption that whatever she's saying must be based on a precedent of bad behavior on my part.