On episode TWO of Let the Bird Fly! we discuss time-zones, naps, recess, the story of the Fall in Genesis 3, the Human Condition, and probably far too much Kierkegaard.
They were incapable of covering their shame. They knew what they'd done was evil, but since they were only "like" God, there was no way for them to go back and replace evil with good.
Here is the truth: we have gained more in Jesus than we lost in Adam. We lost human perfection in the first man's fall. We gained perfect flesh-and-blood unity with God in his Son's incarnation.