Let's all just accept that we all have to breathe the polluted air and just do our best with a conscience. Your concertina reeds contain copper, Dick. Do you know where it was mined and by whom?

I once (and only the once) went out with a vegan. She spent much of the evening berating people who had anything at all to do with animal products of any kind. I pointed out to her that the beer I'd bought her had probably been clarified with fishgut finings, and then I asked her about her leather shoes...

Oh well, I didn't like her much anyway...