Immediately after graduating, Stack surprised everyone by heading out to mine some asteroids despite having no natural talent for the occupation. Spending so much time alone in deep space had a not-uncommon effect on him; he developed an intense desire to kill people. So he traded in his mining rig for a destroyer and set out to murder some pirates. This turned out to be more exciting and profitable than mining, but soon wore on Stack's nerves. His bloodlust was shortlived and gave way to his orginal interest in the sciences and manufacturing. So now he spends his days studying blueprints and immersing himself in diverse areas of research.