A friend sent me this and it is absolutely legit:
So, check out http://www.eatbrains.com/  for all the oozing, coagulating details.
You have to admit, this sounds pretty fucking hilarious:
The details: Saturday, Aug 19th, zombies will be storming the corner of Market and Sansome at 2:30. We will then walk/limp/crawl to Powell Station by 3:00. There will be a big massacre on Powell between Market and O'Farrel. We'll Pick up stragglers at Union Square by 3:30. See the Map
How to participate: Plant yourself somewhere along our route. Show up in plain clothes minus anything of value. Wear a small piece of duct tape (or similar) clearly visible on your torso. Attract our attention somehow. (screaming "aaaiiieeee! zombies!" is good for this). We will attack you, cover you with blood, shred your clothes, and slip you a makeup kit so you can create new zombies. If you want to show up already in zombie gear, great. Just join the mob at any time.
Check out the VIDEO from last year. WOW. By the end there's like fifty nerds! I totally want to go do this today but HP refuses. He's such an anti-nerd.