Even the average USAF F-16 driver knows that there is a high probability that he/she may end up fighting an adversary one day in a near identical F-16 to their own, such is the way of the modern world.
I recall having a chat with an F-15 instructor a few years ago. He had just met the parents of his Saudi student who had just graduated the RTU course. "He taught me everything I know", the student said to his father.
"That's true", the instructor told me. "I taught him everything he knows. But he has no idea about everything I know."