Prior to this act (Adam and Eve) followed God like sheep follow their shepherd. He spoke; they listened. He gave assignments; they fulfilled them. They were naked but unashamed, transparent and unafraid. Yet as one drop of ink clouds a glass of water, the stubborn deed darkened their souls. Everything changed. God's presence stirred panic, not peace. (my emphasis) Adam ran like a kid caught raiding the pantry.
From "3:16 - The Numbers of Hope" by Max Lucado, page 119.