I remember a chap doing it in the Jackson Jollies, an am-dram concert party in Newport, Shropshire. He looked wonderful, flat cap and muffler and even a glass of stout, or Manns Brown Ale which he kept gazing into philosophically.

It was only when he moved the glass towards him to get a better view of the text that we realised he had the words stuck on the back of the glass, hidden by the beer!