 How does Johnson trick the duo into paying for things more than once?
GRIFTERS' ASTEROID By H. L. GOLD Harvey and Joe were the slickest con-men ever to gyp a space-lane sucker. [Transcriber's Note: This etext was produced from Planet Stories May 1943. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] Characteristically, Harvey Ellsworth tried to maintain his dignity, though his parched tongue was almost hanging out. When Harvey staggered pontifically into the battered metalloy saloon—the only one on Planetoid 42—his tall, gangling partner was already stumbling out, mouthing something incoherent. In their hectic voyages from planet to planet, the pair of panacea purveyors had encountered the usual strange life-forms. Paying no attention to them, it was carrying a case of liquor in two hands, six siphons in two others, and a broom and dustpan in the remaining pair. Through thirst-cracked lips he rasped: "Water—quick!" The interplanetary con-men drank noisily, asked for more, until they had drunk eight glasses. Meanwhile, the bartender had taken out eight jiggers and filled them with whiskey. Medical science is unanimous in proclaiming this magic medicine the sole panacea in the entire history of therapeutics." "Yeah?" said the bartender disinterestedly, polishing the chaser glasses without washing them. Our condenser broke down, and we've gone without water for five ghastly days." He came near starving and moved on to Titan. "Mayor takes care of that," replied the saloon owner. Water's five buckos a glass. Liquor's free with every chaser." "When there ain't many customers, you gotta make more on each one. His adrenal glands are sometimes overactive. It's bitter as some kinds of sin before it's purified. Have to bring it in with buckets and make it sweet. Waddya think—I was chargin' feller critters for water just out of devilment? "Friend," said Harvey, taking out a wallet and counting off eight five-bucko bills, "here is your money. What's fair is fair, and you have put a different complexion on what seemed at first to be an unconscionable interjection of a middleman between Nature and man's thirst." "If that's an apology, I accept it. I'm also justice of the peace, official recorder, fire chief...." "And chief of police, no doubt," said Harvey jocosely. Angus Johnson's my name.
 He is dishonest. He offers something for free, without mentioning the actual price of it or that there even is a price.
 He strong arms them into buying with his son.  He is dishonest. He offers something for free, without mentioning the actual price of it or that there even is a price.  He takes advantage of their good will.  He doesn't trick anyone - he is an honest man that is running several jobs.