Currently in the middle of writing a scene that is necessary, but utterly depressing. Despite starting the day upbeat, that feeling is now my own as well. Of course, I'll be fine (I'll pop in a movie later or something), but what are some generalized tips for writing sad and depressing scenes in your story, and most importantly, how do you stave off dipping into melodramatic territory? What mood do you write your saddest (and happiest) moments in yourself? What things, in stories, make you most sad?