Divorce, in Queen Victoria's day, was difficult and expensive. You had to get a private Act of Parliament passed. No wonder some wives used poison to bring their unhappy marriages to an end. Two who got away with it were Mrs Bartlett and Mrs Bravo. Bartlett baffled science. How could she have given her husband chloroform while she nursed his big toe? Mrs Bravo snoozed through the commotion as her husband screamed that his nightly glass of water was burning his throat. In our own day, sexy Mrs Barber wanted revenge as much as separation. So she cooked a delicious paraquat pie.