"Paul wrote this when we were in the Cavern. We've just wrote a few more words on it, like 'Granny on your knee, and stuck in 'Vera, Chuck and Dave.' It was just one of those ones that we'd had only got half a song, but this one was quite a hit with us. I think we used to do it in the Cavern when the amps broke down, just sing it around the piano. I would never even dream of writing a song like that."