Cuckoo patent law

Can you patent a method of selling breakfast cereals? Well since the 1998 State Street Bank case, business methods are patentable in the US but the US Patent Office provisionally rejected the attempt to patent a system for selling cereal "displaying and mixing competitively branded food products" and adding "a third portion of liquid." I'm not a great believer in business method patents, so you won't be surprised to know I think the Patent Office got that one right.