"Have you distributed all the circulars?" asked the doctor.

"Yes, sir."

"Well, here's the ten cents I promised you."

Sam took it, but stood his ground.

"I sent you up a customer," he said.

"A patient; yes."

"And you made two dollars out of him."

"Who told you?"

"He did."

"I charged him my regular price. What of that?" asked the doctor, not comprehending Sam's meaning.