In regards to defending oneself after being attacked by an animal, the reading I've done led me to one, simple conclusion:
FIGHT BACK FEROCIOUSLY Here are a couple of examples:
I read in a Reader's Digest about a couple hiking in Glacier National Park. A grizzly bear rumbled up and the couple lay down, playing dead. The grizzly bear proceeded to maul the husband and drag him off into the woods! The man's wife let out a scream, jumped up, and gave chase. The bear turned around and stood to its full height over the woman. She took the camera in her hand and swung it from the lanyard looped around her wrist, hitting the bear in the nose as hard as she could. The woman continued to do this. The bear looked at her a moment, dropped down on all fours, and walked off into the woods. The woman had saved her husband, although he was air-evac'ed out and had to have a LOT of surgery. The bear had nearly pierced his carotid artery.
This story was printed in the Denver Post when I was going to school in Colorado. A man in Colorado eleven years back was attacked by a mountain lion while out on a solo hike. The man had the presence of mind to pull his knife and fight that cat. It ran off. Less than a mile down the trail, the mountain lion attacked him again! It had been waiting for him, seemingly. The man gouged his thumb into the lion's eye as hard as possible. This time, the cat ran off for good.
In both instances, and countless others, people survived attacks from predatory animals because the people fought back. I never want to test it out, but I don't believe that playing dead is ever the best option. I wouldn't smell rotting and decaying, causing an animal to pass me by as a meal. So, I choose to fight.