Start with a cage containing 5 apes. In the cage hang a
banana on a string. Before long an ape will start to climb the stairs towards
the banana. Whenever any of the apes touch the stairs spray all the
apes with cold water. After several attempts, whenever an ape goes near
the stairs the other apes try to prevent it.
Now put the spray equipment away and exchange one of the apes
with a new one. When the new one approaches the stairs he will be
assaulted by the other 4 apes. Over time exchange each of the original 4
apes with other apes, one at a time.
Now exchange one of the apes with a new one. When the new
one approaches the stairs he will be assaulted by the other apes. The
difference is that none of the apes knows why they are not to approach the
stairs, but will still attack any ape that does so.
Why? Because that's the way they've always done it, and
that's the way it's always been around here. And that's how company
policy begins ...