Mark served honorably for four years on active duty in the Marine Corps infantry, and was a Libertarian endorsed candidate for a municipal office in 2002. He re-enlisted in the ARNG in 2006 because he was depressed/at times SI without the military and was honorably discharged. He stood on principle refusing to take anything from the taxpayer to go to school. He has held the NFA Series 3 license (futures and futures options broker) which he did a voluntary withdrawal on because he couldn't in good conscience sell managed futures since firms would do better to hire an in-house trader to trade a proprietary account with a discount broker, which he outlined in his well-written withdrawal request. Since the year 2000, he has spent much of his free time reading the great minds of the Austrian School of economics, such as Murray Rothbard, Henry Hazlitt, Ludwig von Mises, et al.