The strangest and silliest story of the fashion week has to be that of Christian Louboutin suing YSL in what Hercule Poirot would term ‘The case of the red sole’. The basic facts are that Christian Louboutin are suing YSL for infringing copyright after YSL produced a peep toe shoe with a red sole. Christian Louboutin are, of course, famous for their bright red soles that are the trademark of their highly covetable heels. They have been producing red soled shoes since 1992 and they have become a status symbol, due in no small part to the instantly recognisable red sole. A stream of A list celebrities have sported the…