Apologies if you've heard it before:
A man in a hot air balloon realised he was lost. He reduced altitude and spotted a woman below. He descended a bit more and shouted,
"Excuse me, can you help me? I promised a friend I would meet him an hour ago, but I don't know where I am."
The woman below replied, "You are in a hot air balloon hovering approximately 30 feet above the ground. You're approximately 53.91 degrees north latitude and 1.81 degrees west longitude."
"You must be an engineer," said the balloonist.
"I am," replied the woman, "How did you know?"
"Well," answered the balloonist, "everything you told me is technically correct, but I have no idea what to make of your information, and the fact is I am still lost. Frankly, you've not been much help so far."
The woman below responded, "You must be a manager."
"I am," replied the balloonist, "but how did you know."
"Well," said the woman, "you don't know where you are or where you are going. You have risen to where you are due to a large quantity of hot air. You made a promise that you have no idea how to keep, and you expect someone below you, with their feet on the ground, to solve your problem. The fact is, you are in exactly the same position you were in before we met, but now, somehow, it's my fault."
