The lawyer for a surgeon sued after a woman became pregnant following a failed sterilisation operation, has warned against a return to the "dark days".The doctor, Keith Allenby of Auckland's Middlemore Hospital, says Terri Hannam should have ACC cover but ACC says she should not.Hannam was represented at a Supreme Court hearing today but her lawyer, John Miller, told the five judges that she was "abiding the decision of the court".