I saw Karma in action this morning and I loved every second of it 
One of my neighbours allows her dog out onto the green space in the centre of the cul-de-sac and rarely watches it. The dog shits everywhere and she never picks it up.
I saw her ranting and raving at a friend this morning on my way back from the school run, and from what I heard I gathered this much: some anonymous hero collected all of her dog’s shit from the green, put it into a carrier bag and left it on her doorstep 
Made me smile!