accent and the sound of his voice. Not to mention his angle, I felt that he always had an angle and I wasn't going to like it. 'No, it's not Bob Gallstone' the other voice said in a rather hurt tone. 'It's Pythagoras, I have a cold' She explained. Oh good grief! Pythagoras, not what I wanted at that precise moment in time. Why had I switched my 'phone on? And more to the point, how did I get from Cheryl Choke and Patty Puke's excellent all potato establishment in Wigtown to the side of the Thames? I must be losing my mind, I decided, when ................