As a counsellor, I’d say look at the chaos and the consequences that result from letting those boundaries down. Relate counsellor Christine Northam says: “For some men, seeing someone else looking after his children can result in confused boundaries about sexual desire and motherhood. Jude Law is snogging me.”Another issue may be the blurring of the roles when another woman is let so intimately into the heart of the family. Tellingly, Wright confessed how when Law first kissed her she thought: “I cannot believe this. Perhaps he feels more powerful with the nanny than he does with his fianc?who is earning good money and getting a great deal of attention.”And in the case of Jude Law and Daisy Wright – he a film star, she a “mere” nanny – that power struggle doesn’t have a cat in hell’s chance of being equal.

He said I was very special to want that.”Chartered counselling psychologist Leila Collins of Middlesex University specialises in complex relationships. She says: “A lot of men with busy working wives see the nanny as being more willing to look after him than his wife is, just like mum did There’s also the question of power. “I said to Jude that I didn’t understand why he didn’t find a wife who didn’t want a career and to party all the time. He said it is very hard to find a woman who wants this, and that he would love that more than anything, but there aren’t women like that in his line of work. And now Jude Law.So was Law simply living the clich?taking the chance for a bit of attachment-free sex, or are there more complex issues at work here? Wright describes how Law had told her how wonderful he thought she was How similar their outlooks and parents were.

Singer Chris De Burgh had an affair with the nanny while his wife of 17 years, Diana, was in hospital. After a confrontation, the husband left with the nanny and Mrs Mead was left to bring up their three children alone.And then of course there are the famous ones: British ambassador to Washington Peter Jay fathered a child with his live-in babysitter Jane Tustian. She later discovered through e-mails that it was Katie he was having the affair with. I run a chain of 20 agencies, placing about 300 nannies a year each, and in the past five years there’s only been one case.”Cases do crop up – such as that of Carol Mead, 39, from Hullbridge in Essex, who told a TV programme how she confided in her trusted nanny Katie that she was worried her husband was having an affair.