Those Who Don't Know

The world is divided into two groups. There are those who know, and those who don't know. Those who know are no problem.
Those who don't know are also in two groups. One is those who don't know and know they don't know. Well, they can learn!
But then, there are those who don't know, and don't know they don't know. And they become unit managers!

Parrot

A man goes into a pet shop to buy a parrot. The shop owner points to three identical looking parrots on a perch and says: "The parrot on the left costs $500 dollars". "Why, does the parrot cost so much?" asks the man. The owner says, "Well  the parrot knows how to use a computer". The man then asks about the next parrot and is told that this one costs $1,000 dollars because it can do everything the first parrot can do plus it knows how to use the UNIX operating system. Naturally, the increasingly startled man asks about the third parrot and is told that it costs $2,000 dollars. Needless to say this begs the question, "What can it do?" To which the owner replies, "To be honest I have never seen it do a thing but the other two call him boss!"

Slinky Boss

Q: What do your boss and a slinky have in common?
A: They’re both fun to watch tumble down the stairs.