string and place a set of stairs under it. before long, a monkey will go to the stairs and start to climb towards the banana. as soon as he touches the stairs, spray all of the other monkeys with cold water. after a while, another monkey makes an attempt with the same result, and all the other monkeys are sprayed with cold water. pretty soon the monkeys will try to prevent it.
every time the newest monkey takes to the stairs, he is attacked. most of the monkeys that are beating him have no idea why they were not permitted to climb the stairs or why they are participating in the 