NOTHING can be more ludicrous than the sight of a head of diplomatic mission demanding a public assurance from the prime minister of his host country that he will not be sent packing home. But this is exactly what Sir David Gore-Booth, British high commissioner to India, has gone and done. As if the fiasco over the Queen's visit here was not enough, Sir David's inexplicable antics on the Palam airport tarmac as Prime Minister Inder Kumar Gujral returned from the Commonwealth Summit in Edinburgh has sent Indo-British ties for yet another tail-spin.