We've had people snap and refuse to try local food (rice and chicken) cause its too different.   Local food sounds delicious, that's some hardcore hamplanetry--I could understand if local fare were fishy shit like in Japan (e.g., nori, squid...), but they refuse it not because the taste is bad but because it's not fried and bland.  Eating that way for so long goes beyond "reflexive response to culture shock"; this tendency is likely much greater in hams.