The evil man that was strealing the mobs that were giving them experience. During the MoP Beta there was a bug that made mobs to respawn instantly. Jeremey Manle was a Priest that used an AoE that killed all the mobs instantly. He wouldn't allow Jesse and Crendor to join his party and get the free XP because his party was full. So Jesse got his own Priest and got XP that way. They cursed Manle for not letting them get the XP earlier.
Class: Dyslexic Preist