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A decade or so ago, a mate and I took the train from Falkirk through to Glasgow to watch one of Scotland’s best-loved bands, The Waterboys. You’ll know them, the lot wot sang The whole of the moon. One of the songs that raised the roof that night at The Barras was Don’t bang that drum!, a song that – in Weegieland as well as across the water in Belfast – has a distinct sectarian and political connotation. Elsewhere, however, it’s taken on the meaning of someone spouting endlessly forth on a chosen topic. I don’t often step onto a.