Old Doc MacGee was sitting quietly at home one day when the phone rang. Upon answering he heard the familiar voice of a colleague on the other end of the line.
"We need a fourth for golf," said the voice.
"I'll be right over," whispered the doctor.
As he was putting on his coat, his wife asked, "Is it serious?"
"Very grave indeed," said MacGee in his most solemn tone. "There are three doctors there already ..."