push one’s luck是一个很有意思的词组， 字面意思就是“将好运往前推”，也就是才刚尝到甜头，就想进一步要求更多，所以引申为“得寸进尺”的意思。

【例句】
I wouldn’t push my luck if I were you.
我要是你我就不会得寸进尺。

I didn't dare push my luck too far and did not ask them to sign statements.
我不敢得寸进尺，所以没有让他们在声明上签字。