NANSEN KILLS THE CAT
One day the monks of the eastern and western Zen halls in Master Nansen's monestary were quarreling over over a cat.
Mast Nansen grabbed the cat and held it up in the air and said, "Stupid monks! If even one of you can say the correct word, I will spare this cat. If you can't, I will put it to the sword."
No one answered. So Nansen killed the cat.
When Master Joshu returned to the monastery that evening, Nansen told him what had happened.
Master Joshu took off one of his sandals and put it on his head.
"If you had been there this afternoon," said Nansen, "I could have spared the cat."
— Mumon, The Gateless Gate, Case 14.