Self Destructing Drive

Okay I recently managed to get a few hard drives, what I really have been wanting to do is make a self dustructing drive. I have done some thinking about it, and I would perfef if the ammount of damage done was limited to the drive its self, so no gun powder or thermite. I was condering somthing like a electro mag that I could put inside the drive case to wipe the bastard.

So anyone have any suggestions?

>>11
Dumbass.
Hard drives work on the Bernoulli principle, in that the high speed of the rotation is what keeps the rw head afloat.

You need to make the drive spin at like 1RPM. and then move the heads back and forth.

>>13
Yeah, but not all of it.

I can't wait until solid state hard drives take over.  Those would be easy to kill.  Remove battery = complete destruction.