A few years back, we ran a tea and coffee shop, and for the most part, the people who came into it were within the range of ‘extremely pleasant and well mannered’ down to a ‘trifle surly’. Once a man came in, shouted that our range of gelati was not vegan – not that we’d ever claimed it was – and then left, still shouting. My only conclusion was that he was a professional vegan gelati agitator. Other than that, not much. But there are exceptions….