Susan Calman's Edinburgh festival diary
Comedian Susan Calman will be delivering daily dispatches about life as a performer at the fringe. Today, she says if you think the Olympics is competitive, you should see Edinburgh in AugustI've never seen a comedian run 100 metres in under 10 seconds and I probably never will. But to those who take part in the fringe, the month of August can be as competitive as any Olympic event. Who gets the most critics in? Who …