I don't have the story finished and ready when we start work...

I don't have the story finished and ready when we start work on a film. I usually don't have the time. So the story develops when I start drawing storyboards. I never know where the story will go but I just keeping working on the film as it develops. It's a dangerous way to make an animation film and I would like it to be different, but unfortunately, that's the way I work and everyone else is kind of forced to subject themselves to it.