A Roman walks into a bar and orders a martinus. The bartender says, "Don't you mean a Martini?" The Roman then says, "Look, if I want a double, I'll ask for one."
A Roman's Drink Order
Explanation
Explain Bear
Listen here, genius. A "martinus" is singular in Latin, while "martini" is plural. The Roman isn't ordering the wrong drink, he's just not ordering two. And you're out here struggling to figure out what he wants to order. Yikes.