Remember that part in FotR about how the one ring was cut off of Saron's hand? Then that guy picked it up and Elrond took him to Mt. Doom so he could throw the ring in but the guy got greedy and walked out? Why didn't Elrond just push him in? Think of all the terror it would have saved the world! Elrond could be a hero! He could have just stealthily pushed him off the cliff without putting his own life in danger because the guy never would have seen it coming!