Yeah, there's a lot of comedy in grumpy. Just think of Jack Dee, Jeremy Clarkson or Larry David to name but a few. I must admit when I first started listening I didn't really get Chopper's sense of humour but he definitely grew on me, and now I can't imagine the show without him! I happen to agree with him on a lot of things but maybe that's just cos i'm turning into a grumpy old man myself!