> 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 ...

I specifically remember learning to control those impulses as a child while playing with toys that consisted of sealed, plastic labirynth with few small metal balls inside that you are supposed to guide to few specific indented spots in the labirynth.

I count this learning experience as one of my greatest lifes achievements.