Quote Originally Posted by Witch_Doctor View Post
Reminds me markers left by early 20th Century vagabonds called Hobos. They would leave these signs and symbols near different locations to inform other hobos of what to expect. Any danger to avoid, kind strangers, food sources...

Seems simple enough for a smart zombie to understand. Sort of a zombie version of taping a pass code next to a security key pad, or, even better, a "We're Undead" sign. (That would make Randy the zombie version of Pegs for dropping a folistatin bottle.)

obohedoc.jpg
That reminds me a lot of the ground-to-air emergency signals.

fig19-6.JPG

Of course, an arrow is an arrow. So unless there is a stairwell or ladder nearby, it is pointing at the floor...



Or the Grave! Dun Dun DUN!!!