Is it possible to somehow influence the choice of food served? As I understand, some Korean dishes are made with dogmeat, not sure I could make myself eat it, and refusing it outright would probably offend the hosts.
I spent four years in the South and my Wife is a South Korean, now US citizen; I speak from experience when I say that dog meat (kagoki) is not a staple of the Korean diet (recall that the North and South are split becuase of politics - they are the same people). Dog meat is mostly consummed by older people and the eating of it is frowned upon by the typical South Korean. I must assume the same goes for the North.