Hot Air

It's the weekend already and just to share a joke from a professor who was teaching me:

There were once 3 CEOs (Chief Executive Officers) travelling in a hot air balloon and seemed to be lost. They saw a wise-looking man below and decided to ask him for directions, "Excuse me, could you tell us where are we?" The guy was a professor and he replied, "You are in a hot air balloon." The 3 CEOs were rather cheesed off with the response and one of them told him, "You must be a professor." And the professor looking pleasantly surprised, replied, "How did you know?" "What you said is correct, but not useful."

Now the professor was very cheesed and he said, "You must be CEOs." The 3 CEOs were very surprised that the professor could arrive at such an analysis and were curious, "How did you know?" "The only students I've taught who are so high up but don't where they are, are CEOs."