Two technicians are discussing one-way clutches. technician a says that a sprag and a roller ate two types of one-way clutches. technician b says that a one-way clutch could be installed upside down and cause the automatic transmission/transaxle to not function correctly. which technician is correct?

What is implied in this sentence from mark twain's "the ? 1,000,000 bank-note"? i was puzzled, and wanted to discuss the matter a little further, but they didn't; so i took my leave, feeling hurt and insulted to be made the butt of what was apparently some kind of a practical joke, and yet obliged to put up with it, not being in circumstances to resent affronts from rich and strong folk.