(If the last item on that list is of interest - the household's greywater is passed through a series of tanks, each of which is walled in with stones and bricks. The addition of papyrus and other swamp-dwelling plant species aids in the water purification process. Water from the final tank is used to irrigate the vegetable garden through a drip irrigation system. The whole system is entirely self sufficient, and they have no need for mains water as a result.
Rainwater is also collected, purified and reused. The purified rainwater is used for irrigation via a sprinkler system, and the final tank used for rainwater is also home to a breeding population of tilapia fish. So when they want some small fish for dinner, they can go and fetch some from the tank..)
*Fungai: 'Yes, like fungi, like mushrooms' - When John said this to me, he reminded me of another story from Dr Sadomba that's worth mentioning: When collecting mushrooms in Zimbabwe, he told us, it is said that it is important to say a prayer to your ancestors before you pick the mushrooms. When Dr Sadomba asked local collectors why the mushrooms are so revered, they answered him with a further question, 'Have you ever seen the seed of a mushroom?' Mushrooms, propagated by the fickle and unpredictable movements of the wind alone (oh, and by termites, on occasion), are a mystery, and as such one must take care not to disturb nature's balance when harvesting them.