I can understand you wanting to define the point at which you can "move" the a/c, but given how tight the UAE airspace is, what is the point in not accepting jurisdiction? If you have a loading problem, not accepting one approaching the boundary is going to help how? He wont be on freq, and in a few moments he will be in your patch. Thats gotta be worse. How will you deal with non-acceptance of jurisdiction? Orbit them?