"I also read a report in Good Housekeeping which said that all working mothers wanted for Mother's Day was a little bit of time to themselves. A painfully modest ambition," she says, arching an eyebrow. "These women were too tired to have sex with their husbands, worried their relationships with their family were suffering and, what was very interesting, they thought their own lives were harder than their mother's. I thought, 'Oh, so we've made this great step forward, but we've really just created another stick to beat ourselves with'."