What if Abhisit appoints Cambodia's Sam Rangsi his adviser?

Hun Sen naming Thaksin Shinawatra his personal economic adviser? Deputy PM Suthep Thuangsuban said this morning: "It's Cambodia's internal affair."

He then added cryptically: "What would happen if the Thai government appoints Sam Rangsi (Cambodia's opposition leader) our adviser?"

Is that also Thailad's "internal affair?"

Do two "internal matters" make one international incident? I frankly don't know.