On the first day God created the cow. God said, 'You must go to the field with the farmer all day long and suffer under the sun, have calves and give milk to support the farmer. I will give you a life span of 60 years."
The cow said, "That's a kind of tough life you want me to live for 60 years. Let me have 20 years and I'll give you back the other 40."
And God agreed.
On the second day, God created the dog, God said, "Sit all day by the door of your house and bark at anyone who comes in or walks past.
I will give you a life span of 20 years."
The dog said, "That's too long to be barking. Give me ten years and I'll give back the other ten."
So God agreed (sigh)
On the third day God created the monkey. God said, "Entertain people, do monkey tricks, make them laugh. I'll give you a 20 year life span."
Monkey said, "How boring, monkey tricks for twenty years? I dont think so. Dog gave back ten, so that's what I'll do too, okay?
O n the fourth day God created man. God said "Eat sleep, play, enjoy. Do nothing, just enjoy enjoy. I'll give you 20 years."
Man said, "What? Only 20 years? No way. Tell you what, I'll take my 20 years and the 40 cow gave back, and the 10 dog gave back and the 10 monkey gave back. That makes 80, Okay? said God we have a deal.
So that is why for the first 20 years we eat, sleep, play, enjoy, and do nothing, for the next 40 years we slave in the sun to support our family, for the next 10 years we do monkey tricks to entertain our grandchildren, and for the last 10 years we sit in front of the house and bark at everybody.