The Hate Disease by Murray Leinster, Science Fiction, Adventure 12+

📙 Murgatroyd zestfully licked his empty cup to get the last least drop of coffee. He said hopefully:"Chee?" He wanted more."I'm afraid," said Calhoun, "that you're a sybarite, Murgatroyd. This impassioned desire of yours for coffee disturbs me.""Chee!" said Murgatroyd, with decision."It's become a habit," Calhoun told him severely. "You should taper off. Remember, when anything in your environment becomes a normal part of your environment, it becomes a necessity. Coffee should be a luxury, to be savored as such, instead of something you expect and resent being deprived of."