In Anderson v. Eaton (1930) 211 Cal. 113, the California Supreme Court laid down the framework of an attorney's duties of confidentiality and loyalty in a case involving an attorney's concurrent representation of a plaintiff in a wrongful death action on behalf of their son's estate and of the insurance company representing the son's employer in worker's compensation proceedings: "One of the principal obligations which bind an attorney is that of fidelity, the maintaining inviolate the confidence reposed in him by those who employ him, and at every peril to himself to preserve the secrets of his client. This obligation is a very high and stringent one. It is also an attorney's duty to protect his client in every possible way, and it is a violation of that duty for him to assume a position adverse or antagonistic to his client without the . . . knowledge of all the facts and circumstances. By virtue of this rule, an attorney is precluded from assuming any relation which would prevent him from devoting his entire energies to his client's interests. Nor does it matter that the intention and motives of the attorney are honest. The rule is designed, not alone to prevent the dishonest practitioner from fraudulent conduct, but as well to preclude the honest practitioner from putting himself in a position where he may be required to choose between conflicting duties, or be led to an attempt to reconcile conflicting interests, rather than to enforce to their full extent the rights of the interest which he should alone represent." ( Id. at p. 116)