Haste v. American Home Products Corp.

concluding that Model Rules protect information imparted by a prospective client even if the representation is declined | manufacturer satisfied duty by warning prescribing veterinarian of health risks to animats vaccinated by their owners with its prescription vaccine | attorney-client relationship does not arise only in agency manner, but also where layperson submits confidential information to lawyer with reasonable belief that latter is former’s attorney | “fiduciary relationship existing between lawyer and client extends to preliminary consultation by a prospective client with a view to retention of the lawyer, although actual employment does not result”