The 'dog allowed one bite' belief is one of those bits of folk-law, like the concept of 'common-law wife', as which there is no such thing in actual legislation [I once heard a lawyer say 'You might as well call a nut-cutlet a common-law steak']. The dog's notionally permitted first bite is another such commonly held but erroneous belief. It is simply up to a court to decide whether a dog is dangerous and should be put down, regardless of # of bites.

~M~