When I was starting high school, I accidentally taped over my little sister's dance recital. It wasn't that I did it on purpose; I saw the tape was rewound and it wasn't labeled, so I put it in and taped a movie I wanted to watch later on it. When we all realized what I had done a few years later when we were looking for the tape, we were all upset with me. Even myself, because I know that it was a crappy thing to do. Those were memories that would never come back, and now they were taped over, as if they didn't matter. I don't know if my sister ever forgave me for that.