Oh. My. God.
The relatively innocuous article title "Robot Mouth Used to Study Deaf Speech" didn't give me any clue that the video I was about to see was quite so terrifying.
About.com Deafness linked to this CNET article about a robot mouth being used to demonstrate the proper pronunciation of words. It can determine if someone is pronouncing a word correctly and then does its own creepy, creepy thing to show how. Then it eats everyone in the room.
Maybe not, but that's what it looks like.
Watch the video below and judge for yourself. No captions, and I haven't watched it with the sound on yet. I kind of wish I could watch it without the video on, too. Oh, and there's a scientific article about this here.