Most Hated Form of ID?
I had remembered hearing about a famous outlaw attempting to remove his fingerprints, only to have them return after a decent amount of time.
"Your fingerprints are formed underneath your skin in a layer called dermal papilae. As long as that layer of papilae is there, your fingerprints will always come back, even after scarring or burning." - http://home.earthlink.net/~thekeither/Forensic/pag e6.htm
I think the only way to remove your fingerprints would involve seriously mutilating your hands, beyond acid, probably to the point where you'd be killing nerves too.