I must admit, having read the many interpretations of DDIO, I still haven't much of a clue what the song's about. I have sung it, took a bit of practice, as it sits around my break. I enjoyed singing it and people seemed to like hearing it. I just tried to sing every sentence the same way as I would speak it, whether or not they made any sense following each other.
For anyone who hasn't seen it, it's here: