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());
        }