I've heard a couple of interviews with Jake the Snake on Busted Open (a show on Sirius radio) and the first one, around a year ago, he was an absolute prick. The second time, only a few weeks ago, he was the nicest guy in the world.
01/18 & 01/19 -- Godspeed You! Black Emperor and Neurosis (in Montreal)
02/08 -- Dark Tranquility
04/11 -- Black Sabbath