He used many bad words and said many bad things to the wise man.
The wise man listened to the man patiently and quietly.
He did not say anything while the man spoke.
The angry man finally stopped speaking.
The wise man then asked him;
"if someone wants to give you a gift, but you don't want to accept it, whose gift is it?"
The angry man answered;
"Of course it belongs to the person who tried to give it away in the first place."
"Well," the wise man said,
"I don't accept your bad words, and so they belong to you.
You'll have to keep this gift of bad words that you tried to give to me.
And I'm afraid that in the end you will be an unhappy man.
A bad man who speaks badly of a good man can only bring unhappiness to himself.
It's as if a man wanted to dirty the sky by spitting at it.
His spittle could never make the sky dirty.
Instead it would fall back down on his own face and dirty him.
And if you can take or refuse to accept 'gift' from people,
Why do you keep 'the broken gift'?
If it's a broken one, don't take it.
If it's a good one, accept it and thank him.
Definitely not easy.
Ego, pride, anger often over control us.