"...after careful observation of our own children and their playmates at the toddler stage, that you will see in the nursery every crime in the book except sexual assault: GBH, attempted murder, theft, blackmail, extortion, lying, fraud, false pretence, menacing, putting in fear, robbery with violence, conspiracy, mayhem - the whole Newgate Calendar is on show, and if sex and high treason are exceptions it is only because the little blighters haven't got round to them yet."