An allegedly unfair or deceptive business practice can’t be the basis of a California cause of action if the conduct has been deemed lawful. Here, the allegations were “nothing more than a clever attempt to plead around the statutory bars to relief for exclusion of card counters.” The right to exclude others is a fundamental element of private property ownership, extending to gaming establishments. Thus, Nevada casinos are under no duty to admit card counters and may exclude them as a matter of business judgment.