He told the Glen Campbell joke in 2005 at Foxwoods when I though he seemed a bit down.
I just wanted to comment about I'll Come Running Back To You. I'm glad it isn't on the album. Two cover versions are enough surely and Glenn's love for old R&B songs is not necessarily what the band wants to do. I would hope that his apparent desire to record it means we will in fact see Prelude To Obscurity at some stage.