I guess we'll just have to disagree. Maybe one day, one of us will be proven right.
I remember whenI was young, My grandmother had a neighbor that saw a Big Foot. The kid was my age or a year or two older. He really got made fun of, but never waivered from his story. He saw it while fishing. He loved to fish that river. After he saw it he quit fishing all together.
I also had an unexplained incident, while hunting, that I can't figure out. And like most people, I'd rather keep it to myself.
The wood knocking in your case was two dead trees. But that doesn't account for all wood knockings.
At least you have an interest and we can agree it is an interesting subject.
By the way, I did find one dead bear in the woods. It was the one I got in Pennsylvania a few years ago.