Wilkinson (P) sued D charging them with wrongfully procuring a breach of P's contract with certain farmers to haul milk. P had a milk hauling business that was eventually evidenced by a written contract. D approached P and told P that he wanted to take over the larger route and offered the trade in value of a truck and a job in D's creamery. P refused to give up the route and informed D of the written contract. Friction then developed between P and D and D eventually wrote farmers doing business with P a letter that they would no longer do business with them unless they had the milk picked up by D's trucks only. P was forced to abandon his routes and P sued D. P got the verdict, and a new trial was granted. On that trial, a directed verdict was issued.