"They've got their own system." As she walked, she held up one hand, summoning a small drawstring bag. Opening it, she turned it upside-down until a few metallic coins fell out. "If you don't have any of your own right now, you're welcome to borrow. Since I know where you live and all."

Working two jobs left her with a bit of extra change to spare. And she trusted him to pay her back in time.