Pretend you are an alien and try to get a free soda from a fast food restaurant
This reminded me of a time that ecib and I showed up at a coney island around 2AM with just enough money to buy one hot dog.
ecib: Do you have, like a two-for-one deal on coney dogs?
girl behind counter: No.
ecib: Well, look, we have $2, I'm going to give it to you, and if we get two coney dogs for the price of one, that'd be cool.
girl behind counter: sigh... Order for two coney dogs.