Back in the time of the Samurai there was a powerful emperor who needed a new head Samurai so he sent out a declaration throughout the country that he was searching for one.
A year passed and only 3 people showed up: a Japanese Samurai, a Chinese Samurai and a Jewish Samurai.
The emperor asked the Japanese Samurai to come in and demonstrate why he should be head Samurai.
The Japanese Samurai opened a match box and out pops a little fly. Whoosh goes his sword and the fly drops dead on the ground in 2 pieces.
The emperor exclaimed: "That is very impressive!" The emperor then asked the Chinese Samurai to come in and demonstrate.
The Chinese Samurai also opened a match box and out pops a fly. Whoosh, whoosh goes his sword. The fly drops dead on the ground in 4 pieces.
The emperor exclaimed: "That is really very impressive!" The emperor then had the Jewish Samurai demonstrate why he should be the head Samurai.
The Jewish Samurai also opened a match box and out pops a fly. His flashing sword goes whoooooooossshhh whoooooooossshhh whoooooooossshhh whoooooooossshhh whoooooooossshhh. A gust of wind fills the room, but the fly is still alive and buzzing around.
The emperor, obviously disappointed, asks: "After all of that, why is the fly not dead?"
The Jewish Samurai smiled, "Well, circumcision is not intended to kill"