George Harrison (in 1980) - "'Piggies' is a social comment. I was stuck for one line in the middle until my mother came up with the lyric, 'What they need is a damn good whacking' which is a nice simple way of saying they need a good hiding. It needed to rhyme with 'backing,' 'lacking,' and had absolutely nothing to do with American policemen or Californian shagnasties!"
John Lennon (in 1980) - "I gave George a couple of lines about forks and knives and eating bacon."