I don’t think it would have been so good if I’d always been there. It’s like they can’t miss you if you don’t go away, … It’s been really nice for people to say, `We’ve missed you.’ They don’t say that every day.
It's not like we have a formula, but I think one of the reasons this show has survived is that it has a big heart at its center. Other cartoon shows have people crap on each other and make racist jokes. But I don't think people tune in for that. I just don't think a show lasts for 10 years without a heart.
John Lennon is the model for what I'm trying to do; that he grew and changed, ... It's been hard because you left your friends and I don't see them very much anymore, but look what happened with 1/8 Lennon) and those albums. They were struggling to progress beyond the greatest band that ever existed.