While they are walking along a country road, Pipì, Pupù and Rosmary step in some bull’s shit, left in the middle of the roadway. Our three little friends decide to reproach the bull and kindly ask him to - in future - do his you-know-what in the swampy part next to the road. The bull consents.
Quite contently, Pipì, Pupù and Rosmary continue on their way and a little later meet some dung beetles who are desperate because they can no longer find any bull droppings, which they used to eat. And so our friends, fearing they might have caused an ecological disaster, hurry back to ask the bull to go back to dropping his shit on the road in order to save the dung beetle community.