Seaweed has been on Grandpa duty in Cambridge. Grandson who normally cycles to school has crocked his foot so Grandpa has to do the school run. So there I am about 1550 yesterday stood-to on the steps of the school when overhead, quite low, growls a B-17. A female parent, whom I don't know, is standing nearby. We exchange pleasantries re the Fortress. Seaweed: "Imagine three hundred of those overhead - "Particularly if you were German .. "Heh!" She: "My mother was Austrian." Target round!