Michael and Ann Granger received a letter from the Wizengamot and the goblins that they should test themselves since there is the suspicion that the muggleborns were actually squibborns and they were descending from a squib line. When Hermione was called in and her parents told her, where they would be going, Hermione tried to argue that this must be propaganda from the purebloods discriminating against muggleborns, but Michael questioned, how it was discrimination, when the so-called purebloods think that muggleborns were coming from magical families and it sounded more equivocating than discriminating.