I think more empirical evidence is needed.
Perhaps a black belt test where the testee (testes?) slather down with honey and bacon grease, then hike at night through Yellowstone leading a young goat. Walk until a bruin appears and let the games begin. Bonus points if the student saves the goat and his own butt. SERIOUS bonus points for initiating any confrontation - hey, they are training warriors here!
Been gone two weeks so it's good to see reverie continues.