Carry a childs dummy and a plastic spoon on your walkies.
Push dummy in dog shit ,place plastic spoon next to it and wait for mommies to amble by with young kids in tow.Should provide lots of entertainment for those witnessing the scene
That'll teach filthy moms who litter the park with their used nappies that the poor dogs find frequently by picnic areas.
A dog knows no better but the effin moms do,elbowrs.