Thanks all for your help, Spaw I do not think it was the song I'm thinking about but any thing from Harry Chapin is worth reading and learning, I was about 13-14 when I first heard him on the radio, he was unique.

His Cat in the Cradle song really does reach out to me pretty much in the same way it has to you, using it as a reminder(can't get the right phrase) of what is important in life.

To really peeve everyone I now remember it was Cat in the cradle after all, the ad was showing some thug carrying out a hit and his son seeing it, I'm gonna be like you dad in the background. The violence was putting me off, I could not relate the two.