Last time...god wanna create a world...so he said:
"bull,u have to work for human for 35 yrs,"
then bull said:"no..no...ten yrs is enough!!!"
then god agreed it..

later on,he said to dog:"dog,u have to looking for human's front door and wait for your owner...for 10 years..."This sounds better than bull..
but the dog said:"no..this 'll make me lose my freedom..5 yrs is enough!!"

then,god said to monkey:"monkey,ur job is easier than bull and dog..u no need to work...the only things u hv to do is ...entertain the human..for 6 yrs" and the monkey said:"OMG...u wan me to become like a stupid fella swinging around to entertain them!!!no way..3 yrs for me is enough"

lastly..god said to human:"human...u got the easiest job..the only thing u do is enjoy ur life..bull 'll provide u ur food.. dog 'll take care of u...and monkey 'll entertain u..for 20 yrs"
then the human said:"wow...such a nice life..but 20 yrs is not enough...can i take the excess years that bull,dog and monkey dun wan?"
the god said :"are u sure u wan it?"
human said:"yes!!"

ok...then the whole things go like tat...
human enjoy for 20 yrs, work like a bull for 25 yrs, then when he retired...he look at the front door waiting for their children for 5 yrs...then when his children back, he have to entertain them like the monkey..

THE END..haha