He looks down at the cup like he's seeing it for the first time, then chuckles. "The world I come from is very conservation forward," he explains. "Why dirty another cup from another drinking station when I can rinse and reuse this one?"

He sips as the other man is asking his next question, and swallows hard. "...Some things about it," he says after a moment, expression pensive. "Some things I miss every day."