Twelve years ago I spent some time in the city of my birth, London and decided to take a look at some of the shopping areas I had not visited since childhood.That is how I came to be walking along Oxford Street, window shopping, people watching and absorbing the energy of the place on a busy Saturday afternoon.As I reached Selfridges the throng suddenly thickened and I realized I was caught up in some kind of queue. There was no escape, i had to edge forwards with everyone else. After five minu