Ian Njenga

• A Kenyan barber who wields a sharpened shovel thrives on Africa's social media craze - Safari Martins leads his client Ian Njenga into a sparse shack on the rural roadside in Kiambu, at the edge of metropolitan Nairobi. On the shack’s wooden walls hang a shovel, iron, agricultural shears and a wrench, but Njenga is not there