public object EndMovie() { StringBuilder endMovieString = new StringBuilder(); endMovieString.Append("Shutting movie theater down...\n"); endMovieString.Append(popper.Off()); endMovieString.Append(lights.On()); endMovieString.Append(screen.Up()); endMovieString.Append(projector.Off()); endMovieString.Append(amp.Off()); endMovieString.Append(dvd.Stop()); endMovieString.Append(dvd.Eject()); endMovieString.Append(dvd.Off()); return(endMovieString.ToString()); }