one o'clock
`` I 'll never forget the day I saw you start from the top of the hill near the house . The pram got a rate on of a mile a minute , and the sticks were n't needed . About half-way down it struck a root , and turned three double somersaults in the air . I do n't know how many Norah turned -- but when Dad and I got to the spot she was sitting on a thick mat of grass , laughing like one o'clock , and the pram was about half a mile away on the flat with its wheels in the air ! We quite reckoned you were killed . '' `` Yes , and Dad made me promise not to go down that hill again , '' said Norah ruefully . `` It was a horrid nuisance ! ''