Couldn’t Understand It Any Less

(I am on a cruise, at the bar buying a drink. I’m not a big drinker and want to pace myself.)

Me: “Could I have a Mojito, but could you only use half a nip of rum, please?”

Bartender: “Sorry, what did you say?”

Me: “A Mojito with half a nip of rum.”

Bartender: “I don’t understand ‘half a nip.’”

Me: “A nip is 30 ml, half is 15 ml.”

Bartender: “I know that, but what do you mean?”

Me: “I mean I want half the amount of rum that usually goes into Mojito.”

Bartender: “Oh, my God, sorry. I’m just so used to people asking for more alcohol; you’re the first to ask for less.”