There are moments of opportunity. When a once-in-a-life-time opportunity comes along and one got to learn how to grab it.
There are moments of weakness. Moments when there does not seem to be a suitable acitons around. When the mind in blurred etc.
Here, a very special ability is to abstain from action. Do nothing and you should be proud of it.
It is very hard, though.
A good example or this are moments of emotional overwhelm. For most of us there are times when the mind does not work very efficiently, when we really do not know what to do. But there the feeling comes that "something must be done/said", and this is a mistake. Alas, one got to be able to hold pain for that, which is another rare skill.