A tired businessman complained to his doctor,
"What's wrong with me doctor? I feel awful."
"Let me ask you a few questions. Do you drink much alcohol?"
"None at all".
"What about smoking?"
"No, it's a filthy habit."
"Do you stay out late?"
"I'm in bed every night by ten thirty."
"Well, are you having sharp pains in the head?"
"Yes I am, all the time."
"Just as I thought," said the doctor. "Your halo's on too tight".