"Probably," said Neville, who didn't think Ron had any cause to worry, and feeling a bit like he ought to be participating in the conversation in some way. "Houses usually run in families, so if all the Weasleys have been Gryffindors he'll probably be one too." Neville didn't mention that he had no such reassuring precedent to lean on; his father had been a Gryffindor, his mother a Ravenclaw, Gran was (probably) a Slytherin, and he was pretty sure his late grandfather had been a Hufflepuff. He didn't think he was really worthy of any of the Houses, and without a rule like Weasleys are all Gryffindors, what if the Hat just decided he wasn't good enough and sent him home -