Broken lines: A very rough sketch

I have always loved "unfinished" work more than "finished" work. Or let me rephrase that. Certain work leans toward being better suited to my eye left unfinished. This concept of "unfinished" is also a paradox because once the "unfinished" work is finished is it then unfinished? Anyways, I like to sometimes just "violently" draw and see where it ends up. This is one such a sketch where I just drew and it ended up as being one of my favorite work. It has been 8 years since I drew this, but I think this fits really nicely in with what a "sketchbook" is. The work feels like something which is in a sketchbook.