Eleven women were clinging precariously to a wildly swinging rope suspended from a crumbling outcropping on Mount Everest. Ten were blonde, one was a brunette. As a group, they decided that one of the party should let go. If that didn’t happen, the rope would break and everyone would perish. For an agonizing few moments, no one volunteered. Finally, the brunette gave a truly touching speech, saying she would sacrifice herself to save the lives of the others. All the blondes applauded.