"Chemicals" was actually written originally with a lyric that was split into 2 parts; 1 part was a bunch of seemingly disconnected images, the second telling a story.
I liked the chords, melody and some of the lyrics, but I couldn't get it together.
I left it for about a year, and when I came back to it, the only lyrics that I could remember were the first part, so that is the part that I sing.
I'm quite proud of the song, as it is the only lyric I have written so far that paints a picture using imagery, rather than a more standard narrative.