Chat on the way to the Choir

So there I was walking along, in the dark, on the way to the choir. It is not really recommended ducking through dark places at night on your own, but I only ever take very little money, so it's ok.

Anyway, walking along a very busy road, overtaking another guy, when I hear him talking to me. I think 'another bad luck story, he'll want money'. Turns out he wants to talk his problem of a 'running stomach', Botswana for 'diarrhoea'. As one does, of an evening.  I'm very glad it's dark so I can hide my smile. But he is serious; he wants a medical consultation in the middle of the road. So we go through all the symptoms, he makes some shapes with his hands indicating something, and I just wonder if he is going to drop his trousers on me. But no, the conversation stays perfectly polite; I give him some suggestions, including going to see a doctor seeing he has had it for 3 weeks, and we part company.

Whatever next????