Treading on dreams - my struggle with 'Stan'

I would dearly love to abandon the struggle to persuade 'Stan' that the British guarantee to Poland in 1939 changed history - to me a statement so blindingly obvious that I might as well be asked to prove that it would have been quicker to go from London to Cambridge by train than it was to go by bicycle.

I have grown weary of repeating this case over and over again, to someone who - while hiding behind a false or incomplete identity and so protected from any real feeling of personal slight...