Another "easy" expression is to "go easy on a person".

VOA: special.2009.06.07

- And now temperature in Fahrenheit -- 212 all right, let's go ahead and pick an easy one like 212, Enter, and indeed equals 100 in Celsius.

现在输入华氏温度-,好的，让我们选一个简单的，像，回车，确实等于100摄氏度。

哈佛公开课 - 计算机科学课程节选

In fact,there is an expression "easy come,easy go" that recognizes this.

VOA: special.2010.08.29