Let me give you a quick run down of "the rules" that you guys would know at this point:<br/><br/>1.  The zombies (Zack) are slow shambling corpses that let out a loud moan whenever they see people.<br/>2.  Zack can only be killed by significant trauma to the head (gunshot, crushing the skull, burning, etc).<br/>3.  Zombies spread by biting.  If you are bitten, you will normally die within 16 to 48 hours and rise about 3 hours after death.<br/>4.  People that die by other means will not rise as zombies.<br/>5.  Scratches and exposure to zombie guts (IE one blows up next to you and you get sprayed) might cause an infection and might not.