These 8 robots will haunt your nightmares (pictures)

Not every robot can be as adorable as the round BB-8 from Star Wars. Some robots can't help but haunt your thoughts with horrifying visions of mechanical mayhem. Don't look too closely at this animatronic robot dancer or you might not be able to get to sleep tonight. In a video demonstration, the dancer shakes and shimmies to pulsing music. It also has facial-recognition technology that lets it home in on the faces of real people looking at it in a mirror.