Story goes something like:
First year of EotR, had barely sold a ticket, added DRA super late, he was unsure whether to do it, didn’t want to be associated with a failure, but did, that led to some decent ticket sales, he showed up, refused to play unless they found him a band to drum for, and insisted on playing all of Slayer’s Reign In Blood over the PA before coming on. For first year organisers, this was apparently a tiny bit stressful, as you can imagine.
Not sure I have that totally right, but was along those lines.
Strangely I saw him a few times that year and he swerved wildly between total pro, fantastic shows and utter shambles jamming for hours not playing any songs properly type affairs. No idea which they got.
Anyway, I always think both him and EotR have changed immeasurably, so would be nice for them to make up (In a way he saved the fest, sort of).