The following is an old joke which recently reappeared in my e-mail.
A man is flying in a hot air balloon and realizes that he is lost. He reduces his altitude and spots a man down in a field below him. He hovers the balloon further down and shouts: "Excuse me sir, can you tell me where I am?"
The man below says: "Yes, you are in a hot air balloon, hovering 30 feet above this field."
"You must be a consultant" says the balloonist.
"I am" replies the man. "How did you know?"
"Well" says the balloonist, "everything you told me was technically correct, but of absolutely no use to anyone."
The man down below says "You must be a business owner."
"I am" replies the balloonist. "How did you know?"
"Well" says the consultant, "You don't know where you are, or where you're going, but you expect me to be able to help, and you're in the same position you were before we met....but now it's my fault!"