First off:
http://www.mmowned.com/forums/wow-ex...gonblight.html is a very similar exploit, mine just takes it one step further if you are a druid
The exploit above mentions that if you target just the knight, and don't aggro the horse (in New Hearthglen), then you can kill the knight without anyway for him to reach you
Well as a druid if you first Entangling Roots the Horse, then kill the knight before entangling roots expires, you produce the same effect, but with one addition. Another knight will spawn on the horse and you can repeat the exploit once more. After you kill the second knight, the horse despawns so you essentially don't have to worry when you go to loot your 2 knight corpses.
Works great with quests (Horde):
Let Them Not Rise! - Quest - World of Warcraft
Wanted: The Scarlet Onslaught - Quest - World of Warcraft
Hope this works for you, enjoy