«i»Well that’s true Dave but picking it up in your own back garden is one thing, picking it up elsewhere is something else.«/i»

Well, as I just said, I do pick up from my neighbour's garden but that is beside the point. I do pick up our cat's poop. Why should I pick up anyone else's? You pick up your own dog's mess. Do you pick up others? I'm not following your reasoning here...