"And which is that?"
"Simply by being honest."
"Ah, indeed! That is a new idea."
"It is one which has not before occurred to you, I think."
"Well, name your own price, then."
"Four florins."
"But you are not counting the drive from the station and the time for lunch."
"You are right, I will allow for that."
"And the pourboire."
"That is as I may choose."