I added two more mobs to the avoid list, this named quest npc and her pet easily mow down my mage, and I'm guessing might do the same to other weaker classes and/or classes without a decent CC.
Not sure why, but this just made me fly from the grind spot to TB then chucked my shammy off the side. It then rezzed and ran back (ran not flew) to the grind spot.
*Edit*
Well into my 4th hour and close to 30 everythings doing fine. Have not had any other troubles. For the awesome profile and somewhat amusing emo moment my bot had ima +Rep THX