“Most of my writing is done on my feet, and then when it feels right I put it on the page. It doesn’t mean somebody won’t change it or I won’t decide to change it but at that time it’s the be-all and end-all . I don’t like putting something on the page that I go ‘I don’t know, let’s see if it works, let’s see where it goes’. I have to know exactly where it’s going, what I’m aiming for.”
Joss Whedon