If you are a horde, get the quest Swift Discipline as it provides Antheol's Disciplinary Rod, now if you see an enemy player, use it on him, he will be dismounted and turned into a boar :P, if you are alliance, then let a horde friend send it to you via mail. Works only on EMU Servers.
Check wowhead, to see where the quest begins, also DONT TURN IN the quest Swift Discipline or else you won't have the item.