When product-related safety problems occur, consumers have a responsibility to
a. discard the product
b. report the problem to the seller and the manufacturer
c. sue the seller
d. demand a full refund

an informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.