I'm assuming its something to do with natural animal instinct. bear kills rabbit, lion kills bear, scissors cuts paper, paper covers rock, rock crushes lizard, lizard poisons Spock, Spock smashes scissors, scissors decapitates lizard, lizard eats paper, paper disproves Spock, Spock vaporizes rock, and as it always has, rock crushes scissors.
i lol'd
its a bit sick tbh. goading a bear with a lion to get a reaction.