 In 1970, Walmart's late founder Sam Walton resisted a unionization push by the Retail Clerks International Union in two small Missouri towns by hiring a professional union buster to conduct an anti-union campaign.On the union buster's advice, Walton also took steps to show his workers how the company had their best interests in mind, encouraging them to air concerns with managers and implementing a profit-sharing program.A few years later, Walmart hired a consulting firm, Alpha Associates, to develop a union avoidance program.