A King and His Knight were discussing the merits of sex.   His Majesty
felt that sex was 50% work and 50% fun. However His Knight believed that
sex was 60% fun and only 40% work.   After much debate...the Knight
proposed that his Squire was a fellow with much wisdom...The King agreed
that the Squire was wise beyond his years. So they agreed, that the Knight
would ask his Squire the correct ratio.
 
Knight: "So Squire..which is it 50/50 or 60/40?"
 
Squire: Why my Liege and Lord, sex is 100% fun."

Knight: "Why do you say this Squire?"
 
Squire: "Because my Lord, if there was any work involved you would have me
do it."