Or, it could be like shooting a flesh and blood animal...like a bear. You hit it once or twice in the pumper with a large caliber rifle and it drops. Boom. You have PROOF that bigfoot exists.
People hunt all the time and bystanders arent hit(Dick Cheney not withstanding).
As for the running away AFTER shooting at it...couldnt the same thing apply if you come across one and you arent armed and cant shoot it?
These stories seem to always lack the part that makes them credible. The part where the story teller says,"Then I raised my lever action Marlin 45/70" (or my SW500 mag or my 7mmRem Mag or something of equal or greater foot/lbs of energy out the wazooo) "and I fired repeatedly"....
Then and only then will we actually know if BF is bulletproof, ethereal, or flesh and bone.
Everyone if free to do whatever they want if/when they come across a BF. Run, cry, attempt to communicate, or poop your pants. But me, I am shooting the crap out of it.