Anyone who has been on the London Underground recently will recognise her voice. For eight years its calm, measured tone has politely urged millions of passengers every day to 'mind the gap' and thanked them for travelling on the Tube. But the woman behind the voice is no fan of the capital's transport system, which she avoids using at all costs. And she has just revealed what she really thinks about it by recording a series of scathing, but hilarious, spoof announcements and posting them on her website. In them, Emma Clarke lets rip at American tourists, Sudoku solvers and commuters who stare at female passengers' breasts.