Australian street food | David Cameron memory test | Senseless humans | Hand-knitted swimwear | The Manchester Guardian In the 1970s, a nursing colleague of mine talked about an Australian street food known as a “pie floater” ( Letters, 30 June ). This delicacy used to be sold from kerbside carts, and consisted of a meat pie, thick with gravy, served in a bowl, inverted and smothered in pea soup. Melanie Hewitt London • During David Cameron’s term at No 10, my father was asked by his doctor for the name of the prime minister ( Letters, 30 June ).