Here's one of those stories. It's only 90 seconds, but seems totally real. It's ending only brings on more questions, leaving you wondering if they survived, if they enountered more, and how that guy got in the road.
It comes from an interesting site known as Survive Z Day. The website is definitely worth a look as they provide you with tips and information for, well, surviving Z Day. They even sell stuff you could use as you run from the undead!
Check it out:
Aim high. Run fast.
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B'hold Designs Website