Alright here goes. When I was in my late teens (and still pretty inexperienced), I had never seen an uncircumcised penis before. I know they existed, obviously, but none of my partners up to that point were uncut so I kind of forgot it was a thing. Anyway, one night teenage me was on some kind of recreational drug (I think it was ketamine) and I decided to give this dude a blowjob. Well, between the ketamine and me being so naive, I was convinced that this dude's wang got chopped off and it was like a little amputated wiener that I was blowing. In reality it was just really really small and uncircumcised, but I was mentally scarring myself believing that I was going down on a half-amputated dick. I kept wondering why the hell he would just let me keep going without saying something or acknowledging it. So a very awkward 30 minutes goes by without him even getting hard (in my mind he couldn't get hard cuz it was only half a dick) and the whole time I was sitting there wondering how he pees, if he can cum, how it happened, etc. I finally just got up and left. My friend was driving me home and I started telling her what happened. Of course she realized what happened since she was sober and not having a huge derp moment. She started laughing at me yelling about how I just gave the dude the worst blowjob of his life and how he was probably wondering Wtf just happened just like I was. She kindly let me in on what I was oblivious to and I felt like a huge idiot. Never spoke to the dude again and he never reached out to me either. I don't blame him :/