Why you should be cautious about relying on a knife

[Publius]

to serve your zombie-dispatching needs:

http://www.cnn.com/2007/HEALTH/11/05/injured.soldier/index.html

[Yojimbo]

Unbelievable! To see the dude with a huge blade sticking out of his head, chatting amicably with the doctors while they prep him or surgery was amazing.