"[Punk rock and heavy metal] were pretty segregated [before 1982]. I’m sure there were people from both those scenes that went to different shows but we didn’t book any shows with, like, Black Flag or TSOL. We never booked shows with those guys, which I regret, because I think it would have opened people’s eyes. That’s where the thrash thing came from, it crossed over from the punk element. Consider the circle mosh and stage diving and stuff like that – that came directly from the punk scene."