OOC: Actually I am not immune to decapitation effects :P. Unless eastern vampire is (and I have no stats for the creeper at all so I do not even know is it good template or not). I have likely used souls in the dagger to get the template. Also considering I have sick amount of money and with your ruling I had (hopefully) enchanted heavy fortification on my kilt so I would be immune to crits (or loosing my head).