> The counterproductive flicker of rage I sometimes feel when working with uncooperative, small, delicate parts, which insists I should use large amounts of physical force, is another. Large amounts of physical force are seldom the right solution in modern times, but in the ancestral environment, it likely was.

There is a learned skill to know when to use large amounts of force either physically, emotionally, and/or mentally. The key is knowing when, and for how long which is not always easy or clear.