No it was more about getting them used to the idea of using it at all.
Many years ago I knew this guy Alan who was in the Riot Squad. You know, those guys who used to bring the tanks out when the kaffers would get restless. Well he used to spend alot of time in kaffer squatter camps. The ferals would dig a pit in the ground and everyone would shit in it. They would cover it with a piece of cardboard when not in use. Alan stepped on one and fell inside. He was literally neck deep in kaffer faeces and bear in mind the heat kind of bakes everything.