|Zombie Flash Mob in London - http://www.cgpgrey.com [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
Up to Escape Zombies
Sometimes, you can climb to escape Zombies. For example, you can use a ladder to climb to a roof, pull the ladder up after you, and then escape from the other side of the building. Similarly, you may be able to use a fire escape or steep cliff face to get up and away from Zombies.
Down to Escape Zombies
In The Walking Dead, Glenn famously hides under a rolling trash dumpster to elude a horde of zombies. Earlier in the series, Rick and his party crawled and hid under a tank. Zombies may not immediately grasp that their prey has executed a complex move to exit from an area. Instead, they will tend to mill about where they last saw their prey. Unfortunately, they can mill about for an uncomfortably long time.
|By Paul Sableman (Blue Sewer Lid) [CC BY 2.0 (http://creativecommons.org/licenses/by/2.0)], via Wikimedia Commons
Squeezing Through Obstacles
Zombies also do not seem to search exhaustively or methodically for the humans they seek. You don't see them looking into dumpsters, searching closets, slithering into crawlspaces or climbing into attics. They typically seem to push into obstacles to find humans when they are attracted by movement, light, or sound. If you can squeeze through a gate, under a fence, or through an open window, they may take quite some time to figure out how to follow you.
|A gap in a fence might be an escape! Photo by David Lally [CC BY-SA 2.0 (http://creativecommons.org/licenses/by-sa/2.0)], via Wikimedia Commons