Okay, so I know I've been jokingly putting "Raptor Ostriches" in the tag lines of my posts, but today I actually found this:
Apparently Ostriches are a serious enough threat in the wild to merit a how-to on surviving an encounter with one. They even specifically mention Jurassic Park and raptors.
Apparently Roosevelt himself has commented on the perils of Ostrich attacks, stating that "If, when assailed by the ostrich, the man stands erect, he is in great danger." Fortunately, all you have to do is lie down (next to its razor sharp disemboweling talons) and it'll leave you alone.
My personal highlight of the article (from the part about lying down):
"The bird will still likely stand on you ... and it may even sit on you for a while, but it will most likely not rip you open if you do this equivalent of burying your head in the sand"