A man was flying a hot air balloon and realized that he was lost. He reduced his height and spotted a man down below. He lowered the balloon further and shouted "Excuse me, can you help me? I made a promise to meet someone a half hour ago, but I don't know where the hell I am."
The man below said, "Yes, you're in a hot air balloon, hovering approximately 30 feet off this field. You're between 40 and 42 degrees north latitude and between 58 and 60 degrees west longitude."
"I say, you must be an NCO," said the balloonist.
"I am ", replied the NCO, "How did you know?"
"Well," said the balloonist, "Everything you told me is technically correct, but I have no idea what to do with this information and the fact is, I'm still bloody lost and I'm still going to be late."
"You must be an officer!", said the NCO.
"I am", replied the surprised balloonist, "How did you know that?"
"Well," said the NCO, "You don't know where you are or where you are going. You've made a promise to someone that you can't keep and you expect me to solve all your problems. The fact is you're in exactly the same position you were in before you told me your problems, but now it's somehow my fault."