I always use undead in my campaigns. I try not to, but they're just so fun. They're delightfully evil and creepy. Well, for those of us running worlds with the undead, here's a few helpful reminders, or maybe it's better as comic relief, I'll let you decide. Anyways I wanted to share this link about why a zombie outbreak would fail. It's both informative and funny. Enjoy.
"I'm in ur post, hotlinkin' ur URLs":http://www.cracked.com/article_18683_7-scientific-reasons-zombie-outbreak-would-fail-quickly.html