"You mean, you won't give me the money?" the woman said, puzzled.
I chimed in. "They don't keep any cash here; if they did, someone would try to knock 'em over."
She was huffy, "I don't see why I even bothered!" In retrospect, I should have offered to redeem her voucher out of my own pocket, since I didn't mind the walk.
The guy made it seem like the other store was on the other side of the moon, but it couldn't have been more than 100 meters or so to the New Earth Market. I like the walking, after all, particularly if you can stay in the shade. It's pretty warm here, but surprisingly dry, so as long as you stay out of the direct sun, it's okay.