Does a former employee have a right to enter into competition with the business of his former employer?

"[I]t has long been the public policy of our state that '[a] former employee has the right . . . to enter into competition with his former employer, even for the business of . . . his former employer, provided such competition is fairly and legally conducted.' [Citations.]" (Reeves v. Hanlon (2004) 33 Cal.4th 1140, 1149.) Moreover, " 'it is not ordinarily a tort to hire the employees of another for use in the hirer's business.' [Citation.]" (Ibid.) On the other hand, "this general rule is subject to one significant limitation: 'This immunity against liability is not retained . . . if unfair methods are used in interfering in such advantageous relations.' [Citation.]" (Ibid.)