"No, no, no, it's nothing serious. Our kids are just curious, they want to see some plant seeds exclusive to the oasis. If you don't have any, it's fine."
What is Erik? A wily old desert trader, of course. He immediately saw through the deceptive words of the sand-dweller but decided to play along: "And what about you? What are you doing here?"
"Building a road for you lucky folks. Once it's done, it will greatly increase your travel speed to the oasis," replied the sand-dweller.
"A road? You..." Erik was on the verge of losing his cool and slapping this lier. What a load of crap! Building a road in the desert? Who would come up with such a ludicrous idea? If you want to deceive someone, at least show some respect to the deceived - does any sane person actually believe in such a lie?
"You don't believe me?" The sand-dweller noticed Erik's expression, and immediately became defensive: "If you don't believe me, come see for yourself."