A high school student landed her first summer job, working in a drugstore. As she arrived at the store for her first day, the phone was ringing. Everyone was busy, and the manager asked her to please answer it.
"Good morning," she said in a cheery voice.
"Do you stock Bengay?" asked the caller.
"I'm not sure," said the new clerk.
"Do you have Pepto-Bismol on hand?"
"I couldn't tell you for sure if we do or don't."
"You don't know much do you, young lady?" said the caller.
"No, I guess I don't," the new employee responded. "In fact, when I said, 'Good morning,' I told you everything I know."