Question

why did George not answer the other about waking them up​

Answer 1

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George and Harris started packing the bag. George trod on the butter and it stuck to his slipper. ... They put the butter on the chair. By mistake, Harris sat on it and it stuck behind him.

Answer 2

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They put the pack of butter on the chair. Harris sat on it unintentionally and they were not able to find it when required. They went around the room looking for it and in the end found it held to Harris' trousers and coped to pack it in the teapot.