I never really thought about it until a couple of minutes ago, when I saw a Samsung commercial, but talking thumbs freak me out.
I'm not sure if it is because of the way the faces are morphed, with no chins (or endless chins), or that they look slightly insane, or if I just don't like to think about thumbs. For some reason, I'm less disturbed by the black thumbs in the video. I don't know what that means.
Also, this could really happen. In the future.
I guess I should thank my lucky stars that they aren't big toes.