The preservation of ad libs, improvisations, and the occasional accident or mistimed what-have-you for dramatic or comic effect, sometimes at the cost of continuity. These are often some of the most memorable scenes, for better or for worse, due to their spontaneity. Differs slightly from attaching Hilarious Outtakes to the ends of shows. Related to No Fourth Wall. See also Rule of Funny, Rule of Cool. See also The Show Must Go On, Studio Chatter, Good Bad Bugs. Compare: Contrast Blooper. See also Woolseyism.