Hermione spun on the spot, nearly fell over, and was only saved by Greg, who had managed to keep his balance and rush over to help her. She was not the only one to nearly fall. The whole Hall was suddenly full of staggering people; Longbottom was flat on his back; Ernie Macmillan, on the other hand, had done a kind of pirouetting leap into his hoop and looked momentarily thrilled, until he caught sight of Dean Thomas roaring with laughter at him.