REVISITING AN OLD FRIEND: WHAT CONSTITUTES “A MATTER OF MUTUAL INTEREST” IN RELATION TO A STRIKE? A TALE OF TWO RECENT CASES Pikitup (SOC) Ltd v SA Municipal Workers Union on behalf of Members (2014) 35 ILJ 983 (LAC); and Vanachem Vanadium Products (Pty) . (2015). Obiter, 36(1). https://doi.org/10.17159/obiter.v36i1.11684