To Downtown Hound,
First, the guy more than likely FELT like it was his tree. By DUmp standards that does indeed make it his tree.
Second, he was probably on that side of the tree because that was the side that contains the tree's mouth, communication portal, whatever. I can not say with any sort of certainty as to how trees communicate. Maybe one of you DUers could ring up our mutual old pal, Blackie the Ghost Chicken, and ask him.
Finally, did you start out life that completely full of BS or did it just built up over time?