*Never* use your Kindle (even if it is a DX) as a blunt weapon!!! It is *far* too fragile and might get damaged. Furthermore, if used as a weapon, it will almost certainly be seized as evidence so you won't have it to read during that long jail stay during the trial!
No, I recommend that you buy yourself a used/pawned Oscar and carry it with you at all times. (Lindsay Lohan, Brittany Spears, Mel Gibson and the like are always selling theirs off to raise legal fees...
) You *could settle on carrying a tire iron, but that is so plebian! The very best murders/assaults use the Oscar!