One of the big questions in the climate change debate: Are humans any smarter than frogs in a pot? If you put a frog in a pot and slowly turn up the heat it won't jump out. Instead it will enjoy the nice warm bath until it is cooked to death. We humans seem to be doing pretty much the same thing.
Boxing for me it's the beginning of all sports. I'm willing to bet that the first sport was a man against another man in a fight so I think that's something innate in all of us.