A little change
The patient shook his doctor's hand in gratitude and said:"Since we are the best of friends, I would not want to insult you by offering payment. But I would like for you to know that I had mentioned you in my will.""That is very kind of you," said the doctor emotionally, and then added, "Can I see that prescription I just gave you? I'd like to make a little change..."

A judge, bored and frustrated by a lawyer's tedious argument
A judge, bored and frustrated by a lawyer's tedious arguments, had made numerous rulings to speed the trial along. The attorney had bristled at the judge's orders, and their tempers grew hot. Finally, frustrated with another repetition of arguments he had heard many times before, the judge pointed to his ear and said, "Counselor, you should be aware that at this point, what you are saying is just going in one ear and out the other."

"Your honor," replied the lawyer, "That goes without saying. What is there to prevent it?"