When Mary Poppins told her precocious charges, Jane and Michael, that she was “practically perfect in every way,” she added this caveat, “If I had a fault it would never dare show.”  Then she proceeded to show just how obsessive compulsive, defiant and dependent upon magical thinking she actually was.  Imperfection is, after all, essential to perfection.  Just ask Nanny McPhee.  Read More…