When dealing with HR matters, sometimes you need to over-react to get ahead of the train.

For example, if a manager is racist.

You must be overly firm in your response this type of behaviour so as to set the right example at the top.

You must over-react or risk being seen as a hypocrite or not take unacceptable behaviour seriously.

But most times, its better not to over-react.

React quickly, but be fair in your response.

Don’t over-react.