Cattāri Brahmavihārā

It seems to me that giving into anger or hatred (here I think often if the Pali term vera : (nt.) enmity; hatred) is the worst kind of weakness. Not only do you do yourself serious harm but you have allowed another person to master you.

Now, in the case where no one is actually attempting to inflame your ire you simply look and act like a fool by making a show of your enmity and displeasure but how much worse is it when you give victory away to your tormentor.

It seems to me that the very first step to overcoming the kilesa of ill-will is to refuse to express it through body or speech.