So I was pharming Caretaker Caine in Hillbury Manor..I pulled him to the bottom of the steps and cast Suburst II.
He became non agro...and started following me around..I didn't get a pet window...but I couldn't attack him after that. I had my druid send me pet and he was able to attack him but he disappeared and even though I still had him targeted he was gone and didn't respawn.