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. 
The emperor asked the first Samurai to come in and demonstrate why he should
be head Samurai. 
The first 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 second Samurai to come in and demonstrate. The
second 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 third Samurai demonstrate why he should be the head
Samurai. The third 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 third Samurai smiled, "If you look closely,
you'll see that the fly has been circumcised!