It’s been a roller-coaster of a first week in the Big Brother Mzansi House. It started, obviously enough, with audiences being introduced to 18 Housemates during the first Live Show, and the personalities were on display from the jump. It became clear that the Housemates are all very different indeed, from the vegan B.U. (who nevertheless wears an animal skin headdress, because he is “Zulu first, vegan second) to Terry – an adult content creator with zero chill. It usually takes a few days for Housemates to start sharing intimate stories with one another, but Biggie’s instruction that they tel…