The optometrist, an old and curmudgeonly fellow, was sternly lecturing his new clerk on proper office procedures:
"Remember that customer service is largely a matter of timing. As you are fitting glasses, you must be prepared to quote the 'customary charges.' If the customer asks how much they cost, you say '$75.' ...
"If his eyes don't flutter, say, 'For the frames. The lenses will be $50.'...
"If his eyes still don't flutter, you add ...'Each.'"
-----------------A Final Thought ...
"It was beautiful and simple as all truly great swindles are."
- O. Henry (William Sydney Porter), (1862-1910), U.S. short-story writer