今天听一个老美同事说了一个习语:step on somebody's toes 和大家分享。
就是别人本应负责的事情,我们最好不要介入(Do not step on his toes。)
step on somebody's toes:to say or do something which upsets someone, especially by becoming involved in something which is their responsibility
eg. I'd like to make some changes to the working procedures, but I don't want to step on anyone's toes.