Bigfoot is in the same category as God and Ailiens, every kind of proof but evidence. I see see no reason to stop what your doing Rich. Next time you wake up with your ass hurting it was a cloaked bigfoot sneaking into your bed room playing with your man hole. Normal evolutionary response of a being with matched intelligence, it is all making sense now.
Bigfoot and other stuff out there are not explainable with reasonably accepted scientific disciplines and methods. Their existence has been proven with these methods but their actual existence in itself challenges those methods and thats why world governments and the general scientific community either is unable to accept their existence or denies it all together. Their existence in its true capacity shows the vulnerabilities and shortcomings in our current accepted disciplines and belief systems. Just the fact that they are here does not jive with mainstream scientific thought or theory. What it does expose is that humanity has drifted too far from ancient/aboriginal beliefs and explanation regarding these phenomena.
Humans 1000 years ago had a much better grasp on human origins and the world itself than we do today. We have been completely mislead from the truth, our connection from that truth has been severed and has caused our inability to be truly independent and to live without basic fear.