What's the range of the witch's Curse of Nonviolence? It (and some other Hexes) don't say. It seems really silly to think that it can be used on ANYTHING from ANYWHERE.
Curse of Nonviolence (Su): The witch can curse a creature to prevent it from attacking innocents. If the target fails its Will save, it cannot take violent actions or do anything destructive against any creature with fewer Hit Dice than itself. If another creature takes hostile action against the cursed creature, the cursed creature can act normally in regard to that creature only. This is an abjuration effect. The curse is permanent but can be removed with a break enchantment, miracle, or wish spell. Whether or not the save is successful, a creature cannot be the target of this hex again for 1 day.
Source: Champions of Purity