Alien Hand Syndrome

So, I've just come across yet another crazy, unbelievable, flip-your-world-upside down kind of thing, that happens to be scientifically "real." This scientist in the early 1900s was doing wierd-science on the brain and decided to essentially sever the link between the right side and the left, occasionally resulting in a condition called Alien Hand Syndrome. Essentially, one of the sufferers hands acts of its own volition, and usually at cross purposes from it's owner. In some cases the "alien hand" even tries to strangle its owner. It can perform complex tasks, reqiring interactivity with its environment. It's pretty much exaclty like Evil Dead 2, but real. I have big plans for integrating this into a plot for the show.

It should be noted that the hand affected is the non-dominant hand. Thus usually it's the left or "sinister" hand. Wahahahaha!