What do the two men do when they meet face to face?

Neither man does anything... they each consider murder, but neither of them can bring themselves to act of their feud.

The two enemies stood glaring at one another for a long silent moment. Each had a rifle in his hand, each had hate in his heart and murder uppermost in his mind. The chance had come to give full play to the passions of a lifetime. But a man who has been brought up under the code of a restraining civilisation cannot easily nerve himself to shoot down his neighbour in cold blood and without word spoken, except for an offence against his hearth and honour.