I teach middle-school choir and occasionally have my own children in class. One day my son asked if he could have a pencil. As a teacher，I normally do not lend items to unprepared students；but as a mother，I help my children whenever I can. I asked my son whether he was speaking to his teacher or his mother. He replied，“It degends on who has the pencil."

我教初中的唱詩班，偶爾會教到自己的孩子。一天，我兒子問我是否能借給他一支鉛筆。作為一位老師，我一般不借東西給那些不做課堂準備的學生。但作為一位母親，我應隨時幫助我的孩子。于是，我問兒子他是在跟老師說話，還是在跟母親說話。而他卻說：“那要看誰有鉛筆了?！?/p>