There were several Turks in my PhD program who were there on their government's dime (there was some sort of exchange program in place). They'd take their doctorate, then they had to either: 1) go back to Turkey and teach for something like five or seven years; or 2) find a gig in the U.S. and then pay back the Turkish government some outlandish sum (like $50K or $75) in a very short timeframe (like three or four years). The strong students among them took the latter option, because the pay differential between U.S. business schools and those in Turkey made that option worthwhile.
I got to be good friends with a couple of them and we'd kid around a good bit about our different backgrounds. For example, they'd give me **** about Halloween or Christmas, and I might, in passing, refer to Constantinople. We never got near anything really sensitive, though. It was all lighthearted but respectful.
A few years ago at a conference I wound up sitting with several of them at the main luncheon, and they had some of their Turkish friends with them. I and my friends were talking in our usual way, when one of them mentioned he'd gone home. "Yeah, back to Constantinople?" I asked innocently. My friends laughed, but their friends were none too amused. They quickly explained, but I resolved to not do any of that sort of kidding around them again.