Zombies drool is thick, and foul smelling! Zombies, themselves smell even worse. Zombies are self-centered, and extremely violent. Zombies are among the worst things you could ever encounter. Zombies move slowly due to muscle, and tendon rot. Quick movement will cause a Zombie to come apart and lose it's appendages, which can be a very good thing for you. 

 Now listen closely... If you encounter one the best advice is to disarm it quickly, especially if it is armed with either a Samurai sword, or a gawd-damn nail gun! Those things hurt something awful!