the needle & the damage done lyrics

I caught you knocking on my celler door
I love you, baby, can I have some more
Oh, oh, the damage done

I hit the city and I lost my pen
I watch the needle take another man
Gone, gone, the damage done

I sing this song because I love the man
I know some of you don't understand
Milk blood, to keep from running out

I seen the needle and the damage done
A little part of it in everyone
But every junkie is like the setting sun