is revenge really important when it comes to your morals?

The story that I chose is about a barber who is known for his good shaving career. He is shaving for a military unit captain, but he knows that this captain has killed and imprisoned some of his friends in the past. He has the urge to kill him and get revenge for his friends but is trying to decide whether he should do that to him or just give him a shave and let him go. The barber here holds back from those thoughts and decides to give him a good cut and let him go, and we learn that the captain came in knowing that he could get killed. The dilemma here is to kill the captain or not to kill…