I would have been tempted to pick up the fresh, warm poo, bare-handed mind you, and threw it in her face. Bam!!!.. Tok Tok that right there Karen. Then ask her if that made her feel better..
I mean I wouldn't have.. but the temptation would have certainly been there..
It's tough to know what to do in these sorts of situations. I went from thinking she was being friendly, to thinking that she was joking, to realizing that this was a crazy person that I might have hurt to make her go away. Had she attempted to do anything to my dog the situation would have ended very badly for her.