I am citizen of both Country A (USA) and B. When I go to Country C, I want to go in as citizen of Country B because 1) visa fee is lower and 2) Country C is more friendly to the citizens of Country B.
However, Country C conducts exit control. Without a valid visa or green card + passport of Country B, they wouldn't let anybody leaving the country for Country A. On the other hand, without the entry stamp on the Country A's passport, it's impossible to leave too.
However, Country C conducts exit control. Without a valid visa or green card + passport of Country B, they wouldn't let anybody leaving the country for Country A. On the other hand, without the entry stamp on the Country A's passport, it's impossible to leave too.