Anyone who has ever doubted a Marine’s skills on the dance floor hasn’t met Sgt. Maj. Michael Miller. The top enlisted member of 3rd Battalion, 4th Marines, out of Marine Corps Combat Center Twentynine Palms, Calif., took to to the dance floor to show off some pretty sweet movies during a recent Marine Corps birthday ball. The worm, the moonwalk and the Roger Rabbit were all on display during Michael Jackson’s “Billy Jean.” And like a true sergeant major, Miller clearly motivated his Marines. Others quickly joined in — one Marine even broke into the splits on the dance floor.…