“Originally, the riff was written during the sessions for Youthanasia, or maybe Cryptic Writings. It’s been around for a while. See what I mean? Some of our stuff has to sit for a while.

“I’m so happy that the riff matured into a complete song – it's so menacing. [laughs] I seem to recall playing the basis for the song in Rome, Italy, during a soundcheck, and I remember seeing the janitor and the popcorn lady turning around and getting into it. That meant something to me.

“When you get right down to it, that’s the true test of a great song. Plenty of people will tell you something is cool, but if you can get the janitor and the popcorn lady at a venue rocking out to an unfinished song, come on, then you know it’s cool!” [laughs]