I get these moods where I think that no one else in the world understands how I feel. And what I do is sit on my balcony, smoke and feel very sorry for myself. I say we're all entitled to this every once in a while. For a song to be a sad song for me it has to conjure up a memory or feeling; something which the melody usually does for me. Then I listen to the lyrics and tend to be convinced he/she is singing about ME! Admit it - you do it too.