"When you play the game of thrones, you win or you die. There is no middle ground." Cersei Lannister (Game of Thrones)
OK, it is time to address the dragon in the room. The human animal has been tested and stressed for millennia, if not from the obvious predatory cats, crocs, and birds of two million years ago then to the current Holocene epoch where scientific instruments are needed to identify the enemy.