On the first day, God created the dog and said, "Sit all day by the door of your house and bark at anyone who comes in or walks past. For this, I will give you a life span of twenty years."
The dog said, "That's a long time to be barking. How about only ten years and I'll give you back the other ten?"
So God saw it was good.
On the second day, God created the monkey and said, "Entertain people, do tricks, and make them laugh. For this, I'll give you a twenty-year life span."
The monkey said, "Monkey tricks for twenty years? That's a pretty long time to perform. How about I give you back ten like the dog did?"
And God again saw it was good.
On the third day, God created the cow and said, "You must go into the field with the farmer all day long and suffer under the sun, have calves and give milk to support the farmer's family. For this, I will give you a life span of sixty years."
The cow said, "That's kind of a tough life you want me to live for sixty years. How about twenty and I'll give back the other forty?"
And God agreed it was good.
On the fourth day, God created humans and said, "Eat, sleep, play, marry and enjoy your life. For this, I'll give you twenty years."
But the human said, "Only twenty years? Could you possibly give me my twenty, the forty the cow gave back, the ten the monkey gave back, and the ten the dog gave back; that makes eighty, okay?"
"Okay," said God, "You asked for it."
So that is why for our first twenty years, we eat, sleep, play and enjoy ourselves. For the next forty years, we slave in the sun to support our family. For the next ten years, we do monkey tricks to entertain the grandchildren. And for the last ten years, we sit on the front porch and bark at everyone.
Life has now been explained to you.
When you have an 'I Hate My Job day', try this out: 
I was walking past the mental hospital the other day, and all the patients were shouting, '13....13....13.' The fence was too high to see over, but I saw a little gap in the planks, so I looked through to see what was going on. Then someone poked me in the eye with a stick!!! 
A fifteen year old Amish boy and his father were in a mall. They were amazed by almost everything they saw, but especially by two shiny, silver walls that could move apart and then slide back together again.
The vet rolled his eyes, turned around and left the room. He returned a few minutes later with a black Labrador Retriever. As the duck's owner looked on in amazement, the dog stood on his hind legs, put his front paws on the examination table and sniffed the duck from top to bottom. He then looked up at the vet with sad eyes and shook his head.
A few minutes later he returned with a cat. The cat jumped on the table and also delicately sniffed the bird from head to foot The cat sat back on its haunches, shook its head, meowed softly and strolled out of the room.
A duck walks into a bar and asks, "Got any grapes?"
