I'll be the skin of your teeth
I'll be the tag on your toe
I'll strike you with grief
I'll be your fatal blow

I'll be your wounds undressed
I'll be the knock on your door
I'll be your dying breath
When you can't take any more
[ Lyrics from: http://www.lyricsfreak.com/c/cops+and+robbers/your+worst+nightmare_20354940.html ]