An encouragement from Amy Carmichael to not respond in kind when we are accused:

Mk 8.5: And he looked around them with anger, grieved at their hardness of heart, and said to the man, “Stretch out your hand.”  And he stretched it out, and his hand was restored.

Mk 3.21-23: And when his friends heard it, they went out to seize him, for they said, “He is beside himself.”  And the scribes who came down from Jerusalem said, “He is possessed by Beelzebub, and by the prince of demons he casts out the demons.”  And he called them to him, and said to them in parables, “How can Satan cast out Satan?”

When our Lord had looked around on them with anger, being grieved for their hardness of heart, He said a loving word to a poor man who was probably a good deal troubled because of the excitement in the place.

What do we say when we are grieved and angry?  Do we speak a kind word to someone who needs it?

Some said: “He is beside Himself.”  Others declared: “He casts out devils by the prince of the devils.”  But He asked, How can Satan cast out Satan?  There was not a word of indignant self-defense, just a quiet question.  It was the overflow of the sweetness and peace of His heart.  When we are unkindly and unjustly accused, perhaps just when we have been helping someone, how do we react?  Perhaps there is not time for a long prayer in that moment of quick temptation, but there is always time for a look up to Him.  “Thy sweetness, Lord.  Thy peace, Lord.”

It will always be given.