Once upon a time, there were two troops of baboons which lived in a deep and lush valley in the middle of the savannah. These two troops kept to their own territories and did not interact with each other, though sometimes a baboon or two from either side would meet to squabble or mate when nobody was looking.
But then, one day, in the middle of the valley, a most wondrous thing happened. A tree suddenly grew heavy with fruit, its branches weighed down with luscious orbs that just begged to be eaten. As soon as they had seen it, both troops of baboons rushed upon the tree in order to strip it of its edible load.
“It belongs to us,” the birds which lived in the tree protested, but they were chased away, their nests destroyed and their eggs broken. The two troops of baboons then had the tree to themselves, with no competitors...but for each other.
Promptly, the two baboon troops began fighting desperately over the fruit, biting and scratching at each other, until the branches of the tree were broken.
Then a young baboon rose up from amongst the troops and said, “Brothers and sisters, we must make peace. For if we do not, if you fight each other, soon the fruit will be knocked off and trampled into the ground, and there will be nothing left to eat – for anyone.”
But the baboons paid him no heed, but rather intensified their fighting, until the fruit was knocked off and trampled into the ground, and there was nothing left to eat, for anyone.
And then they set upon the young baboon and tore him to pieces. They were quite justified.
It was all his fault, anyway.