When a rebel army swept into a town in Korea, all the monks of the Zen temple fled except for the abbot.
The general came into the temple and was annoyed that the abbot did not receive him with respect.
“Don’t you know,” he shouted, “that you are looking at a man who can run you through without blinking?”
“And you,” replied the abbot strongly, “are looking at a man who can be run through without blinking!”
The general stared at him, then made a bow and retired.
source: Leggett, T. (1977). Routledge & Kegan Paul, p.160.