        “Imagine this scene: a pegasus and a griffon confront each other on a cloud.  The griffon pulls a broken sword from its scabbard.  The pony has no way of knowing if the sword just broke in combat, and the griffon is preparing to defend itself with the half-weapon it has left—which could still be quite lethal—or if it is a message of surrender.  Only if the edges are entirely blunted does it reveal a non-hostile intention.”