@Jenn. That's exactly it. It's why when I was at a Green Day concert earlier this year, I couldn't stop from starting to shout things like 1,2 - 1,2,3,4 during Hitchin' A Ride, before Billie asked the crowd to do so, because I could predict it. And yes, I've listened to BIAB enough times to have memorised all of his little ''inputs''. It never gets old though!