Sydney has more than its fair share of mad people. Oxford Street where we live is so full of them that Garry and I have rechristened it Madison Avenue. People asking for money, people chatting to lamp-posts, people shouting at the breeze... and this morning a quite attractive young woman singing into a hairbrush and dancing, playing to the audience that was her own reflection in a shop window. And it's not even time for the next round of auditions for Popstars. Mad.