accidentally, inadvertently, unintentionally I think each of these words is used differently, but the difference is subtle, and I'm not sure how to explain the differences yet.
You know, it just happened. I didn't mean to do it, and I am not sure how it happened. I was drunk and she was willing, and the next morning, you know, 55555555. I didn't mean to do it, trust me, your honor. I didn't mean to do it. Shit happens, your honor.