Is there a really obvious reason I'm not getting, lacking the dog ownership knowledge as I am? Perhaps if they picked it up on their way back I'd understand, but they don't. Our village is littered with neat little bags of dog shit, sometimes hanging on fences or trees, sometimes just left on the ground. Do these people think they're any less of a twat than the people who do nothing? Who do they expect to pick up the bag and dispose of it properly? Have they considered how interesting a neatly knotted bag looks to a 2 year old? Am I allowed to scream obscenities if I witness them doing this, or will a dog owner enlighten me as to why this is, in fact, perfectly reasonable and universally condoned behaviour?