content: the sun had long set , and the young moon had risen like a silver crescent in the sky . the old man suddenly realized how late it was and began to hurry home . he patted his right cheek all the time , as if to make sure of his good fortune in having lost the wen . he was so happy that he found it impossible to walk quietly -- he ran and danced the whole way home .
answer: he was so happy .
question: why did the man find it impossible to walk quietly ?
target: why did the man find it impossible to walk quietly ?
references: why did the man find it impossible to walk quietly ?