Three samurais compete with each other

Three samurais are sitting around a camp fire when suddenly, one boasts. "I am the world's best swordsman!" – he stands up, whips out his sword and cut a fly in half.

The second samurai says,"No, I'm the best." and he sees a fly -his sword flashes twice- then the fly falls into 4 pieces.

The third samurai, wanting to prove them both wrong says "Hold my sake.". He stands, slashes at a fly… and the fly continued flying. The first two samurais erupted into laughter – but the third explains "That poor fly, he can never have sex again!"