One of the things when you write, well the way I write, is that you are writing your scenario and there are different roads that become available that the characters could go down. Screenwriters will have a habit of putting road blocks up against some of those roads because basically they can't afford to have their characters go down there because they think they are writing a movie or trying to sell a script or something like that. I have never put that kind of imposition on my characters. Wherever they go I follow.