What the fuck?

http://pcwizcomputer.com/weaksauce12/wp-conte...er-690.jpg

This is my case. See the metal trimming along the face that goes all the way up to the top? Well if I touch that right now I get fucking shocked.

It's a lot stronger near where the hd bay is.

It hasn't impacted the computer suprisingly. I found out it's doing this out of luck.. I'm suprised it hasn't fucked parts if it's doing stuff like this.

Anyways, what the hell would cause this and what do i do to make it stop?