Three Samurai

Three Samurai were taking their last swordsmanship test with their Master. In front of each was a small box. The master approached the first Samurai and opened the box and out came a fly. In one fluid motion the sword swept thru the air, and into the box fell the fly - cut in half. The master replied “You are a true Samurai”
He moved to the second Samurai and opened the box. Out came the fly and in two slashes of the shinny sword four pieces of the fly fell back into the box. “Impressive” said the Master, “you are a true Samurai”
The Master opened the third box, and a flurry of activity the fly flew away and out the window. The Master scowled - “You have much to learn… the fly got away” To that, the Samurai replied: “Perhaps, but he will not be reproducing baby flies….”