A panicked patient called her doctor’s office concerning a refill for a prescription.
“Is it true,” the woman wanted to know, “that the medication you prescribed for me has to be taken for the rest of my life?”
“Yes, I’m afraid so,” the doctor answered.
There was a moment of silence before the woman continued, “I’m wondering, then, just how serious is my condition? This prescription is marked ‘NO REFILLS.’”