Aim for the Head!

A very important rule of zombie killing is "don't engage close quaters hand to hand combat with a zombie unless you are trained or armed". even if you are trained the risk are still high for a random bite. If you do get in a situation where hand to hand combat is necessary then AIM FOR THE HEAD! The average human head takes 1250PSI to crack (pounds per square inch) so it'd be a good idea to have a weapon. don't over estimate your self! cracking a human skull is harder than you think bare handed, unless you can crack a coconut with your bare hands then you wouldn't be able to crack a skull empty handed.