How about a reality check feature? If the feature was enabled, every once in a while while on Mortal Mist an image would flash on the screen to remind you to do a reality check. People could change how often the image appears (3 settings, never, random, or a user-defined time period), how many seconds it stays on the screen, and what image to use. The default image would just be the words "Are you dreaming?" with a transparent background.