Maureen F. McHugh has an interesting writing assignment in mind for her students:
Maybe set up a situation–someone walks into a room where someone is dead in a kitchen chair at the table–and generate what might happen next if the character is a detective, or if the character is a twenty-two year old governess who thinks of herself as plain, or if the character is a psychopathic killer, or if the character is a child. I’m very interested in the conventions we have established and in what reader expectations are in these situations, and how we deal with reader expectations. I think that a lot of plot is a tightrope walk between the cliche and the completely unexpected.