You sometimes use the excuse, 'I'm a writer, dammit, I can do anything I want,' but that doesn't work.
When I just sit around my house and work, I can work two, three hours, and then I go off and ride a horse or do something that I perceive to be a lot more fun.
When you write a play, you work out like a musician on a piece of music. You find all the rhythms and the melody and the harmonies and take them as they come.