one day , hans 's mother said , " where are you going , hans ? " hans answered , " to grethel 's , mother . " " manage well , hans . " " all right ! good - bye , mother . " " good - bye , hans . " then hans came to grethel 's . " good morning , grethel . " " good morning , hans . what have you brought me to - day ? " " i have brought nothing , but i want something . " so grethel gave hans a needle ; and then he said , " good - bye , grethel , " and she said , " good - bye , hans . " hans carried the needle away with him , and stuck it in a hay - cart that was going along , and he followed it home . " good evening , mother . " " good evening , hans . where have you been ? " " to grethel 's , mother . " " what did you take her ? " " i took nothing , but i brought away something . " " what did grethel give you ? " " a needle , mother . " " what did you do with it , hans ? " " stuck it in the hay - cart . " " that was very stupid of you , hans . you should have stuck it in your sleeve . " " all right , mother ! i 'll do better next time . " when next time came , hans 's mother said , " where are you going , hans ? " " to grethel 's , mother . " " manage well , hans . " " all right ! good - bye , mother . " " good - bye , hans . " then hans came to grethel . " good morning , grethel . " " good morning , hans . what have you brought me to - day ? " " i 've brought nothing , but i want something . " so grethel gave hans a knife , and then he said , " good - bye , grethel , " and she said , " good - bye , hans . " hans took the knife away with him , and stuck it in his sleeve , and went home . " good evening , mother . " " good evening , hans . where have you been ? " " to grethel 's . " " what did you take her ? " " i took nothing , but i brought away something . " " what did grethel give you , hans ? " " a knife , mother . " " what did you do with it , hans ? " " stuck it in my sleeve , mother . " " that was very stupid of you , hans . you should have put it in your pocket . " " all right , mother ! i 'll do better next time . " 
because his mother told him to put the needle there .
why did hans put the knife in his sleeve ?
why did hans put the knife in his sleeve ?