"Goodwill has been said to be "the attractive force which brings in custom" (Inland Revenue Commissioners v Muller & Co.'s Margarine Ltd. [(1901) A.C. 217, at p. 224]). Hence, to determine the nature of the goodwill in any given case, it is necessary to consider the type of business and the type of customer which such a business is inherently likely to attract as well as all surrounding circumstances. Now, customers vary. In Whiteman Smith Motor Co. Ltd. v Haplin [(1934) 2 K.B. 35, at pp. 42, 49] the types were zoologically classified into cats, dogs, rats and rabbits. The cat prefers the old home to the person who keeps it, and stays in the old home although the person who has kept the home leaves, and so it represents the customer who goes to the old shop whoever keeps it, and provides the local goodwill. The faithful dog is attached to the person rather than the place; he will follow the outgoing if he does not go too far. The rat has no attachments, and is purely casual. The rabbit is attracted by mere propinquity. He comes because he happens to live close by and it would be more trouble to go elsewhere. These categories serve as a reminder that the goodwill of a business is a composite thing referable in part to its locality, in part to the way in which it is conducted and the personality of those who conduct it, and in part to the likelihood of competition, many customers being no doubt actuated by mixed motives in conferring their custom."