Jack was amazed by how well Ianto had adjusted to life among the stars. Of course, his TARDIS had a lot to do with that; she’d picked up important information about the worlds they’d visited while searching for Jack, telling Ianto anything he needed to know to fit in.
Even so, watching him trading with aliens was endlessly fascinating. As Jack looked on, Ianto bowed low, offering the squat creatures what looked like a bag of marbles in exchange for enough fresh fruit and vegetables to last them several months.
“Apparently glass is more precious than diamonds here,” Ianto explained.