"How about we just make a few test pots and see how it goes," Ravi suggests, because he doesn't want to go and get completely confident only to be shown to be an idiot. After all, he can see himself getting comeuppance if he decides that he's smarter at this than Major.

"Bring me some of the coffee?" he suggests. "I really hope it's already ground, otherwise we're about to have a miserable little while of mashing up beans."