Salomon v Salomon & Co established that a company is a separate legal entity from its shareholders, even if one shareholder wholly owns and controls the company. Foss v Harbottle established two rules - the proper plaintiff rule, which says a wrong done to the company can only be addressed by the company, and the majority rule principle, which says a court will not interfere if the alleged wrong can be confirmed by a majority shareholder vote. Automatic Self-Cleansing Filter Syndicate Co. v Cunninghame established that the directors, not shareholders, have discretion over decisions like selling company assets, unless the articles of association are amended.